![atrains](/img/default-banner.jpg)
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atrains
Добавлен 7 авг 2006
My passions are old school BMX, GT Freestyle bikes from the 80’s, RC cars (Tamiya), and guitars.and Oh and in the late 90’s to early 2000’s I owned a 1995 Thunderbird LX with a 2000 Mustang GT (PI) engine and an Allen Engine Development supercharger. Eaton M90S made 9-10 psi of boost. The car ran mostly low 13’s at 105 mph with the best of 12.79 @ 109 mph. That car was fun. The people I met in the T-Bird and Cougar MN12 community were next level. Car is long gone but the memories remain. I dedicate my videos to these subjects. I hope you enjoy and spend some time watching my videos!
The FS Stamp Meaning - GT
The true meaning of the FS stamp on the GT bikes. Its origin and what it means to the community. FS simply means Freestyle. It was used on the original Performer to differentiate it from the racing bikes. That carried over to the other freestyle frames like the Pro Performer, the Pro World Tour, the Pro Freestyle Tour and the Team Model. Not all of the frames received the FS stamp.
bmxmuseum.com/
bmxmuseum.com/forums/viewtopic.php?id=528632
Link to the BMXMUSEUM serial number registry.
bmxmuseum.com/
bmxmuseum.com/forums/viewtopic.php?id=528632
Link to the BMXMUSEUM serial number registry.
Просмотров: 891
Видео
How to install the Dia Compe 990 on the PP/PFT and PFTTM.
Просмотров 435Месяц назад
How to install the Dia Compe 990 U brake on your 1987-1990 GT Pro Performer, Pro Freestyle Tour and the Team model. This also works for Dyno Pro Compe and Team Models. Pretty much all of the 990 brake bikes from the 1980’s.
1988 GT Pro Freestyle Tour Bike check
Просмотров 540Месяц назад
Fully restored 1988 GT Pro Freestyle Tour - Non Team model This is going up for sale on the BMXMUSEUM so head over there to get it! Atrains89 3/88 Frame set, original forks, seat post and Dyno Pretzel handlebars. Powder coat by C4 labs in electric blue. No dents, no dings and no repairs! Gen 1 Tomahawk mags, restored. New ball bearings and fresh grease. Salon 50 to whiten them. GT LP5 20 x 1.75...
A’ME single flange Rounds for your 1987 GT and Dyno bikes are now available from Porkchop BMX.
Просмотров 8533 месяца назад
A’ME single flange Rounds for your 1987 GT and Dyno bikes are now available from Porkchop BMX. These are identical to the grips used in late 1986 and throughout all of 1987 for the Performer, Pro Performer, Pro Freestyle Tour, and the top of the line PFTTM. On the Dyno side they were used on the Compe, the Pro Compe and the top of the line PCTM. Let me know if these came on any other bikes as w...
GT Frame Stander Generations
Просмотров 7903 месяца назад
A video detailing the GT Frame Stander generations. 0 thru 2.
GT BMX catalog differences on production bikes
Просмотров 6 тыс.4 месяца назад
This video we will discuss some of the differences between the bikes shown in the 80’s and 90’s GT catalogs and the actual production bikes you received when ordering them or picking them up from your LBS.
The Dia Compe 882L VS the Dia Compe 883
Просмотров 7915 месяцев назад
This video is dedicated to the differences between the Dia Compe FS882L and the Dia Compe 883. The basic principles are the 883 is and was always equipped with a 7mm pivot Allen bolt and the 882L was the more economical version of the 883 with a 6mm pivot bolt. Hence all acorn or cone nut 883’s without the Allen bolt are essentially 882L’s. Enjoy the video!
1989-1991 GT Aggressor history
Просмотров 2,8 тыс.5 месяцев назад
1989-1991 GT Aggressor history and background
1987-1990 GT Pro Performer and PFT front brake cable Tips and Tricks xTek Series
Просмотров 6976 месяцев назад
Today’s video is on how to route the front brake cable through the forks using the internal routing on the 1987-1990 GT Pro Performer, Pro Freestyle Tour, the Team Model and many Dyno Pro Compe models as well. As always thanks for watching! Please subscribe and like the video! More content is in the works.
1987 GT Pro Freestyle Tour Team Model Miniature 3D printed!
Просмотров 1,3 тыс.6 месяцев назад
Scale BMX Builds 1987 GT Pro Freestyle Tour TM miniature kit build. These are available from the Facebook group Scale BMX Builds and you have to become a member to be eligible to purchase the kits from them. They are available painted but not assembled. Don’t ask they don’t ship them assembled. Update: Instructions are included, although basic they do come with the kits. Mine was missing the sh...
1987 Diamond Back Cool Streak Bike Check
Просмотров 8426 месяцев назад
Fully restored 1987 Diamond Back Cool Streak in Freestyle Blue. This build was done for a friend of mine and was submitted to the BMXMUSEUM 2024 calendar build off. In this video we are going to do a bike check and go over all the details and what was used and why. There is a separate video that will posted going over the background on the build. I’ll leave a link for that. For the power coatin...
Porkchop BMX NEW GT/Dyno 2123 Seats in various colors now available - Exclusive First look
Просмотров 2,3 тыс.9 месяцев назад
Porkchop BMX has done it, working out a deal with GT to use the GT winged logo and Dyno branding on brand new Viscount type 2123 seats. These are high quality newly molded seats based on the original 2123 Viscount design. They even have them without the bike branding name if you need a plain 2123 for your build. October 4th, 2023: This is an exclusive first look at them. Nobody has even seen th...
Porkchop BMX 2014 to present GT Power Series replacement spindle and pinch bolts
Просмотров 98810 месяцев назад
Porkchop BMX 2014 to present GT Power Series replacement spindle and pinch bolts
Porkchop BMX 1986-1990 GT Power Series crank replacement spindle and pinch bolt review
Просмотров 64811 месяцев назад
Porkchop BMX 1986-1990 GT Power Series crank replacement spindle and pinch bolt review
xTek Tips and Tricks Series - GT new school hub peg options.
Просмотров 816Год назад
xTek Tips and Tricks Series - GT new school hub peg options.
1987 GT Pro Performer, Pro Freestyle Tour and PFTTM standard vs XL seat clamp
Просмотров 1,1 тыс.Год назад
1987 GT Pro Performer, Pro Freestyle Tour and PFTTM standard vs XL seat clamp
1987 GT freestyle decals and Team Model differences
Просмотров 2,1 тыс.Год назад
1987 GT freestyle decals and Team Model differences
Tamiya RZ ball bearing upgrade installation video
Просмотров 2,6 тыс.Год назад
Tamiya RZ ball bearing upgrade installation video
GT Pro Performer and Pro Freestyle Tour lower gyro cables were made by??????
Просмотров 12 тыс.Год назад
GT Pro Performer and Pro Freestyle Tour lower gyro cables were made by??????
GT laid back seat post vs Dyno drain pipe seat post
Просмотров 1,4 тыс.Год назад
GT laid back seat post vs Dyno drain pipe seat post
1988 GT Pro Freestyle Tour Trip down memory lane part 2
Просмотров 2,5 тыс.Год назад
1988 GT Pro Freestyle Tour Trip down memory lane part 2
Good video! We need more like it. Those catalog errors sure make things difficult. Your video starts off with the 1986 catalog but it would be great if you could look at earlier years. The video mentions next year models being available the previous year (like cars). I had a Mach One that I got Christmas 84, but it was an 84 model (which was the first year). The 85 had several component changes. I know mostly how mine came equipped but sometimes I look for a few minor details that I just can't remember, but considering the catalog discrepancies, it's difficult. And my photos from back then aren't good enough quality to tell. I also think GT (and all companies) would just occasionally use different parts (and slight design differences), depending on supply issues, especially since other companies made many of the components a bike company used, even if it was branded with the bike companies name. I also noticed some of the GT bikes at bmxmuseum seem to be labeled the wrong year. Perhaps people assumed that their bike was the model year of the year they bought it. Or perhaps it was just because GT equipped them differently even for the same year. Of course the owner(s) could have swapped parts too.
@@jbw9999 yes this is a huge problem for many people because they see the serial number like 1087xxxxx and assume it’s a 1987 and was a 1987 model. I have a 1087 PFTTM that is 100% a 1988 by color, decals, parts used etc. That is going to be an upcoming video. As for the pre 1986 catalogs. I have a 1982 or 1983 catalog but I have never seen a 1984 or 1985 before with my own eyes. I can’t make a video on something if I don’t have the evidence to support it. Thanks for watching and commenting!
Hello, can I ask is the 89 performer with the crash test decals any more desirable or rare than any other for that year ? Just wondering
You lucky one. This is a Lamborghini. Done and Dusted everyday!! Keep it like a crown:-)
I’ve been slowly adding more and more NOS parts to it. It’s more original now than before. Going to be making the Aggressor video soon! Stay tuned. Thanks for watching and commenting.
Hi, just checking if youve seen the serial number update ? i may have mistakenly sent it to myself ? , just seeing the frame says G5L1 etc has a made in japan sticker rite near it, but is labeled pro world tour with original stickers and paint no baseball stamp either ,it sounds very confusing i believe ? Any help would be great thanks
G5L1 G for the production line. 5 for the year 1985. L for the 12th month or December. This was made in Japan. Very late ‘85 most likely set up as a 1986.
@atrains ok great thanks for the info, would you speculate ? where does this bike stand as far as if it is true. and I believe it is all og paint and decals as an original set plus having pro world stickers , this would throw a wrench in the facts we know, as a whole ..... I'm just learning as I go and if this may become an oddity. Case in the end it may help you as well, but again it's japan and I'm not sure the higher end models were. Produced there as you agree, or could this be actually what it shows, 🤔 I do appreciate your thoughts and time
I think you wanted this comment in the FS stamp video not the catalog differences video, but originally you said the bike had a made in Taiwan sticker on it. Yet the serial number points to Japan. So can you clarify you have a made in Taiwan decal on a frame with a serial number pointing to a Japanese factory. As for the statement I made on the FS stamp meaning video that all the high end bikes like the PFT, TM and such were made in the USA while the lower end bikes were all made in the orient. The inference is that you need to apply the all numerical serial number to the frame. All numerical (except with GTxxxx) is USA made. Yes, there are some PP, PWT/PFT that were made in the orient, it’s not that every single one was USA made but starting in 1987 things changed as GT had their Huntington Beach CA factory humming and producing a lot of the higher end products. I hope this helps.
@atrains yes it does help I did reference the wrong video list here , that being said yes it shows made in japan actual I was going on memory when I first spoke I had not seen it in period of time and thought otherwise, so all that being said, it all help hope to clarify that and I really appreciate your help and reply, as in my plans I hope to buy this bike, it's currently nfs bit open in the future I wanted to make sure I was buying and offering for what it actually is . I'm going to thank you and maybe if anything else pops up I hope you can help
Great video, im flored by the mid year change to the pro world and ive also heard they moved production from santa anna to huntington beach mid year 1986 ? Resulting to the race pro series decals also changed can you elaborate or add to that ?
GT moved to Huntington Beach CA in 1985. You can google 1985 GT BMX magazine ads and look at the address on it. Definitely 1985. I don’t know enough about the race line and each year specifically to comment with absolute certainty, so I stay in my lane.
And thanks for watching and commenting! I appreciate it.
@atrains thanks for the quick reply I have another curious question is it better here or email? You may be able to figure something out for me
@@radvision2631look me up on the BMXMUSEUM under Atrains89
Hey I havent been on there, I'll just ask quickly, I've come across a world tour labeled 86 and it has a made in tiawan sticker, so I don't have the serial number yet, this statement Kind of contradicts info of over seas pro style models , any ideas
Feed it up first thru the fork , then pull the cable thru your pots mod. Then you can put the stem in.
@Dylanmartin3141 That is another method to do it and I’ve used that method before many many times. In fact I made a step by step how to on a BMXMUSEUM doing that way. bmxmuseum.com/forums/viewtopic.php?id=796932 However after doing a few a dozen GT’s I noticed some inconsistency with the fork tubes and being able to make the transition from the fork tube to the steer tube. Therefore doing it the way I showed in my video eliminates the issue altogether. Thanks for watching and commenting.
Wow the wave of irritation and relief that washed over me lol
Strange, I have a survivor all original 1988 Performer with a race version stem with a factory Potts mod.
Not strange at all. GT was building hundreds of thousands of bikes each year between, GT, Dyno, Robinson, Auburn, Powerlite so it makes sense that a race stem modified for freestyle would be on your bike.
What are Gen 1 going for these days?
Head over to the BMXMUSEUM or Evilbay for current selling prices. It depends on the condition and if OG finish. bmxmuseum.com/forsale/691168
👍👍
Great video.Now people can know this. 👍
On the comment about PFTs, pro performers etc.. built in the USA....What about the Japanese built world tours? there are world tours out there with bottom bracket serials and dual cable guides on fork??
What about them specifically are you referring to?
I was under the impression by the video..(maybe I missed something) that they were only built in U.S.?
@@shtdaprdtrmany of the bikes were built in the orient. Only all numerical serial numbers were USA made. I apologize if you understood what I meant when I said PFTs were made in the USA. Generally the high end bikes were USA made but definitely not all of them. Again follow the serial number. Any letters in it (besides GT) and it was made in the orient. Thanks for watching and commenting.
This is what we love you for Tony👏😉 Thank you for doing these the way you do 🏆
Great video and curated clips Tony! Thank you again, these have been great to watch and enjoy. In my short study of PPs/PFTs since 2021 I fully agree with your summary statements at the end, they had to have been making so many bikes in late 87 into 88 the FS stamp had to be haphazard with bigger fish to fry.
In addition to this video a fellow GT owner presented a photo of his early 1989 Aggressor that had the FS stamp instead of the A. Now there are two possible reasons for this; 1) factory error grabbing the wrong dropout when welding. 2) GT was very confused about the aggressor in the beginning and some photos of it in ads show it with PFT decals. Another ad has no decals at all. Regardless GT might have considered it freestyle at first before making the change to Aggressor model abbreviation. What it does mean and proves is that Gary misspoke in the video. We all can agree that 1989 Aggressors were USA built being prototypes at that moment in time. So FS being stamped contradicts Gary’s FS = made overseas answer he gave.
Awesome
Love it! Thank you
Your videos are always so informative. Love it!
Good info. Thx!
Great video Tony!
My video of Eddie.. You're welcome
Love these tutorials , excellent source for folks, plus get to see some nice builds. But truly the 990s are a pain and when watching the video you realize actually how many steps there really are 😂 and the fine tuning of the cables and gyros to get them to brake solid and gyro spin smoothly. Thanks for the vids ❤
Holy CRAP!!! I own that exact bike in that same color!! 1988 GT Pro Freestyle Tour in electric blue with sealed mechanism mags! I found mine at Russel’s Bike Shop in Downey, CA in June, 1990, just about a month after my ‘87 Pro Performer was stolen. I still have it. Mine is in about 90% survivor condition with nearly all original parts. It came with those exact cranks, but there was a problem and the bike shop had to swap them out. There wasn’t enough thread, and the lock nut kept popping off and falling down to the pedal. The shop replaced them with newer GT Power Series 1-piece crank arms which have the logo dry-transferred in black letters similar to the 3-piece cranks. Also, I hated that stem. In ‘92 I finally found an original 1985 stamped GT block stem in white with a Potts-mod hollow bolt. My mom bought it for me ($35), and I had Bellflower Bikes install it. Unfortunately, when they did that, they also replaced the lower cable with the new, longer Gyro cable, which I never liked. I still have the original cable in my parts collection, and I know the dual cables are 4” long. I was always happy with the newly installed block stem. I thought this was the correct stem for ‘88 because that’s how the bikes are equipped in the ‘88 catalog. Not until the internet came along did I slowly realize that the new, inverted GT stem (which doesn’t appear in the catalog until ‘89) actually was factory original for ‘88. I still have the factory inverted stem and plastic cap which came with the bike, although the shaft is bent forward. The shaft on the block stem is perfect. In ‘92, when I started 9th grade, I very badly wanted to add GT Superlace wheels. These were still being sold at that time, but I couldn’t find any with the original GT hub logo. Even though they were 36-spoke hubs, they were being provided with the new GT sleek logo hub sticker of the ‘90s. I was never satisfied with this, so I ended up never buying them. I replaced the tires twice and the grips once, but I always bought the correct ones. The correct tires are the GT 20x1.75” low-profile tread, and they are all white. My last set of tires came from Albe’s mail order, which I installed before I retired the bike and switched to a ‘94 Pro Freestyle Tour Team Model, which I also still have (in pieces). The 990 is not the correct U-brake for ‘88. GT Pro Freestyle Tours, Pro Performers and Dyno Pro Comps came with a thicker U-brake from Axiom, which I bet is difficult to find today. The 990 is the better brake, though, because it offers better brake pad adjustability. My bike also has Odyssey RX-3 levers and a Dia-Compe 883 Nippon in the front. My powder coat is factory original, and is in excellent condition with no fading. My mags are pretty yellow, and so are some areas of the cable housings. The correct pegs are the first generation GT steel pegs, which go in the rear with the frame standers. The alloy pegs you have are correct for ‘87; my Pro Performer had those. My bike came with black, sealed cartridge bottom bracket bearings just like those, so I believe those are correct. 👍 Thank you for uploading your video! Stay rad! 🤙
Hey bud that was a lot to unpack. Well I’m glad you liked it! As for the 990 being the incorrect u brake for 1988, that is not true. GT used the DC990 and the Axiom 767 brake through 1988-1989. When the DC990 came out in 1986 and GT started using them in 1987, many other bikes started as well, like Haro. There was a shortage of DC990 and GT needed to fill a void. The Axiom was used on the Pro Performer, PFT and the TM in 1988 but not all of them got it. I have a survivor PFTTM ‘88 that had it. I had a ‘88 PFT new when I was young that had it as well. But there are specimens out there with the DC990 from the factory.
@@atrains Hey that's really interesting. I never saw an '88 GT or Dyno equipped with a 990, but I have always wondered why the Axiom was used. I used to like the Axiom better as a kid due to it's thicker, more visible look. It wasn't until my flatland days in the '90s when I realized that the 990 is really the better system. I'd really like to know why in the '89 catalog, both Pro Freestyle Tours are equipped with Nippons in the rear. I've only learned recently through seeing people's bikes on RUclips that the actual '89 Pro Freestyle Tours came with the same chain stay mounted U-brake system with the cable through the down-tube as it was on '87, '88 and '90.
These seats are awesome I've bought 7 of them so far for my oldschool dyno compe collection
Quick and easy. You didnt show them adjusting the pads and dialing the barrels adjuster to get the gyro silver detangler perfect and even. Save that or the next video,idk how i never made a video for that,after doing so many in my lifetime.
@MorbidThrasher666 Yes you are correct. I was running out of time and didn’t want it to go over 10 minutes by much. Setting up brake pads will be for a future video as will be dialing in the Gyro. Thanks for watching and commenting bud.
Beauty!💟
Nice job on the video!! This is a common problem for most when installing the 990.
Not me,im a pro,lol
Whats the best way to feed the bottom cable thur the s vend?
Honestly….remove the cable housing from the cable and feed the cable through the top entrance of the s-bend. Then fish it out the lower exit guide then install the cable housing and push it back up. The hosing will follow the cable. See the video below for more details. ruclips.net/video/ltFJaLUY2Tw/видео.htmlsi=I7uEAKYFVXl1YBK9
Awesome thank you
Good info. Thanks!!
That is one beautiful specimen. 100% perfect, I wouldn't change a thing. 👌
Fuggggggg! 10/10! Beautiful bike! 🔥🔥🔥🤌🏽🤌🏽🤌🏽
Nice bike. DM me price. Thx.
Hit me up on the BMXMUSEUM. Atrains89
The shorter cables were made by odyssey for gt
No they were not. We have found markings on them. CS usually, especially on the upper cable.
What model are the Ukai rims ? I had a set on my Dyno back late 80's wouldn't know what they were. Memory not so good these days lol. Looked like your set though pretty sure.
Ukai speedline hook end. 20 x 1.75. They should just be hook end without the grooves like a 7L but I used them because of their condition. Speedlines were used mostly on the racing bikes.
I had one identical to this one except I had a set of 3 spoke gt mags on mine.
Three spoke mags? They came with Tomahawks from the factory in ‘88-‘91. They are 6 spoke.
@atrains I gotta say you definitely did the bike justice, and you did an outstanding job on the refurbishment. Congratulations on your attention to detail……..🫡
Thanks for the compliments! Much appreciated. Thanks for watching and commenting.
It was usually 2 years from start to finish .
Can’t be. Doesn’t add up part timing wise. Odyssey gyro came out in late 1986. It’s in the 1987 catalog. Dia Compe 990 came out late 1986, it’s in the 1987 catalog. Two years to make the catalog, no way.
Do you know anyone who has a 87 gt performer fork for sale? Trying to build up a frame I have . If not do you know of any forks I could use for now?
Try the BMXMUSEUM, FB groups and Evilbay.
@@atrainsthanks! yeah Ive been on them all no luck yet lol, I met a guy who makes really good gt reproduction parts and he make forks also but he's backed up right now, I might just wait on him
@CertifiedTray310 I just sold a mint ‘88 GT Performer fork on the BMXMUSEUM a few weeks ago. Stamped ‘88 Akisu. Anyway I know who is you are taking about, RP and he does high quality work. You won’t be disappointed.
@@atrainsreally, I would've e bought it to use temporarily, thanks for the reply I just subbed to your channel great info
bmxmuseum.com/forsale/680708
GT wanted to show us the new pro performer but Eddie didnt want to 🤘
Me too got a white 88 Pro Freestyle Tour TM
Great video! Brother very educational. I have one og TM and didn’t know it was that rare.
Hi ! Thanks for your inf. I have one gt aggressor ! I wold like to know what's the price today for one those please !! I'm from Hidalgo Mexico
Oso it depends on the year, condition and how original the parts are. Check the BMXMUSEUM for prices of recently sold compete bikes for and idea. I tell you this….if it’s OG and you part it out…big bucks!
I just picked up a purple 94 Auburn on Marketplace for $50 an can't find much info on them. Do you know anything about their history, etc? They don't get mentioned often even though they hold value and are straight off the GT floor. Thanks!
Sorry I do not know much about Auburn other than GT acquired them in the late 80’s. Check on the BMXMUSEUM for helpful info and history.
Cool vid… Just finished a 90 team model Aggressor. Just grabbed a 91 frameset. Will be the flat/matte black team model when I’m finished. OutlawinTX on bmxmuseum
The only thing I don't like is the whale tail type frame standers and the GT fold down fork standers. They never came on any of the pro freestyle tours and by the time they made that bike nobody used them because they were pretty much useless for all the rolling and scuffing tricks by that time but I guess it's down to personal preference and the bike looks great either way
Well that’s not entirely true. Starting in 1987 the Pro Freestyle Tour came with fold down fork standers and Gen 1 frame standers. This carried into 1990. I agree they were somewhat useless and I removed them from my ‘88 PFT BITD. But they did come on the PFT and TM.
@@atrains yes your correct, my bad. I thought they came on earlier pro performers. I know mine came with the white GT axle pegs.
Would a gen 3 fit a 26” with a 1 1/8 sealed intergraded 41.8x45 headset
I have a set of those hubs on my mosh. It’s still in my extra bedroom collecting dust
Well they are worth some cash if you sell them. Otherwise get riding on them. Thanks for watching and commenting.
There are many 1989 PFT models at the Museum with welded 990 mounts on the bottom of the chain stay. Some noted serials in 89 too. You said that in 88 GT used the 2188 seat. The one you showed does not have the bubble font logo on the seat. Your 2188 example had the slanted block font logo on the seat (6:08 mark). That style logo doesn't appear on bikes until 1990...including frame decals.
Hey thanks for watching and commenting. Yeah there are a few people who claim that they have factory 1989 PFT and TM without the 990 mounts from the factory. Everything I’ve seen has 990 mounts. I think this all stems from the explosion of bikes wanting to use the DC990 which was relatively new in 1987. GT had to switch to the Axiom for 1988 in some cases. There weren’t enough DC990 to go around between Haro and GT and everyone else. So the myth has some validity that they would have abandoned the mounts and put the brake on the top like the catalog shows but I’ve not seen proof of this. I did see the 1989 Dayglo yellow PFT frame set though. So there is that. I have a 1989 PFT (5/89) and it has 990 mounts. Onto the seat. Yes I showed the 90’s GT seat for comparison. Doesn’t matter it’s still a 2188 Viscount. My point was the 2123 is 1987 only. The 2188 was ‘88 and well into 1993.
This was two weeks ago but am I seeing the colors now or is that a different grip? I’m confused
Porkchop has White, Black and Maui Blue available in the new single flange rounds. He has more colors on the way. He also has a ton of new neon colors for the A’me Tri’s. Check out Porkchop BMX for the latest updates. www.porkchopbmx.com/new-products/
Not BMX related but still GT related, I own a 1998 GT Tempest, which in the catalogue states the frame is 7005 series Aluminium (I live in UK, hence different spelling). However my GT Tempest is stamped and stickered as 6061 Custom Blended and butted, I don't know how many of these still exist. I have seen people selling and showing off the same year Tempest with 7005 aluminium. Maybe the 6061 were left over from Avalanche models, although the main distinction is that my Tempest frame doesn't have an integrated seatpost clamp and externally reinforced headtube. Other than that it's a great bike to own and ride. I bought it as a frame and built it up like a BMX/MTB hybrid as I need gears to ride up and down hills.
Interesting