Just bought a TM R1 used fully rebuilt. From my research in a Canada, it was the best longevity, maintenance cost and resale value. We don’t have Japanese shifters or Iame in Canada. So it was basically so to Rok vs KZ. Everyone I talked to that has a Rok or wish they did, wishes they had a KZ
Good info. One overarching thing I'll add to the video is the importance of checking what engines/classes are run at your local track. For lapping days it won't matter, but if you plan to enter races the last thing you want to do is shell out cash only to find that you can't race it. Where did the 100Hr maintenance number come from for the Yamaha, that's the first time I've seen that number.
@@RACE.KART.PRODUCTS 100hrs on a bottom end is pretty good. Assuming the moto in the video you have is one of the Yamaha's from MRC... have you got 100hrs or so on one of those yet.
Exellent video. I hope the yamaha can bring back the numbers we saw with the S1-S5 honda classes. There is also a daytona 4stroke shifter project I think could bring a lot of club level briggs guys into shifters.
Its really fast. Engine is good for 15 to 20 hours on piston and another 20 hours for a full rebuild. But they penalize them 10lbs of balest against the KZ
I run a 175 Super Shifter (Euro version with the electric starter). My last piston has 15 hours on it and I’m about to change. My bottom end has 29 hours (I’ll do a full bottom end alongside the piston). I just run unleaded 98 and have used the engine multiple times on the most brutal road circuit one can find, Phillip Island, plus in numerous sprint races. It just keeps going. Given those maintenance numbers, reliability, unleaded fuel use and the massive plus with an electric start, why on earth did SKUSA develop the 175 SSE rather than just running with the base Euro version? The outcome and uptake for a replacement to the CR125 (which I also run) could have been so different.
Why dont the EFI these engines? The kits are so cheap there only 250$ from Japan and like 20$ extra is its a 2 cycle and or need a map sensor for a turbo setup. Its fully adjustable with a laptop and it comes with the program and usb connection
Which kit are you referring to out of curiosity? The only ones I've seen in that price range have pretty terrible tuning software, so I'm curious which kit you're looking at. EFI still struggles with two stroke piped engines in racing conditions. There's a group of (Very experienced) guys in the UK working with the KTM with EFI, so far it's either slow or it locks up. MotoGP teams couldn't get it quite right and reverted to carb. EFI for a two stroke OK for everyday or motocross trail use. But the changing demands across the rev range, resonance and reversion qualities of a highly tuned engine in racing conditions have made EFI elusive so far. Turbo on a piped two stroke gives you a powerband of about 500RPM. Which means it will be a slow That said, anything over 50HP on most kart tracks barely makes a dent on your laptimes.
Where do i find a used VORTEX ROK Shifter cause i wanna work on it and i do wanna modify it and have some serious fun. Cause 1500$ would be perfect for me.
Which one would be perfect for me to find cheap? I want power i just want to drift it honestly cause im gonna turbo it and EFI it. If not ill use it for racing and just do that to my Rotax fr125 Max i just picked up i also own 2 yamaha kt100s but i wanna be able to shift it. Also im gonna give you a fallow to have you answer some of my questions i have
Probably the cheapest to buy would be a CR80 or if you're able to fab up a mount and other items, a pitbike engine is another way to go. Neither of these will service with a turbo though.
Motori Seven ! - My L3an with latest cylinder version is stronger then both R1 and R2. And it's 11 years old engine. Why I have pick Seven ? Because I found that EVERY engine is tuned inside factory by creator itself. With motori Seven you do not buy new engine and then send it to tuner to get most of it, you get it straight out from factory, even the bottom is completely polished it amazing. Also new L9 engine is a beast, and the fastest engine I have seen.
Just bought a TM R1 used fully rebuilt.
From my research in a Canada, it was the best longevity, maintenance cost and resale value.
We don’t have Japanese shifters or Iame in Canada. So it was basically so to Rok vs KZ.
Everyone I talked to that has a Rok or wish they did, wishes they had a KZ
Where you located? I'm in the GTA just got a KZ!
@@helmetculture nice , I’m from Orillia
Good info.
One overarching thing I'll add to the video is the importance of checking what engines/classes are run at your local track. For lapping days it won't matter, but if you plan to enter races the last thing you want to do is shell out cash only to find that you can't race it.
Where did the 100Hr maintenance number come from for the Yamaha, that's the first time I've seen that number.
I have personal experience with more than 1 moto engine that made it over 100 hours on the crank. All these numbers are personal experience.
@@RACE.KART.PRODUCTS 100hrs on a bottom end is pretty good.
Assuming the moto in the video you have is one of the Yamaha's from MRC... have you got 100hrs or so on one of those yet.
The metals the TM is made of is of a higher quality a little more attention to details when assemble as well
Exellent video.
I hope the yamaha can bring back the numbers we saw with the S1-S5 honda classes.
There is also a daytona 4stroke shifter project I think could bring a lot of club level briggs guys into shifters.
Need more tire tests
Is it just me over was the IAME 175 Super Shifter a flop?
Its really fast. Engine is good for 15 to 20 hours on piston and another 20 hours for a full rebuild. But they penalize them 10lbs of balest against the KZ
I run a 175 Super Shifter (Euro version with the electric starter). My last piston has 15 hours on it and I’m about to change. My bottom end has 29 hours (I’ll do a full bottom end alongside the piston). I just run unleaded 98 and have used the engine multiple times on the most brutal road circuit one can find, Phillip Island, plus in numerous sprint races. It just keeps going. Given those maintenance numbers, reliability, unleaded fuel use and the massive plus with an electric start, why on earth did SKUSA develop the 175 SSE rather than just running with the base Euro version? The outcome and uptake for a replacement to the CR125 (which I also run) could have been so different.
Thanks for this
One of my buddys is getting 30hr out of the roc at 20:1 with c12
You should have included pevesi although it went under.
Because the transmission in TM is bullet proof better metals in the TM
Why dont the EFI these engines? The kits are so cheap there only 250$ from Japan and like 20$ extra is its a 2 cycle and or need a map sensor for a turbo setup. Its fully adjustable with a laptop and it comes with the program and usb connection
karting folks in the shifter ranks like to stay true to the pureness of a carburetor. It may be more appealing to club level though
Which kit are you referring to out of curiosity? The only ones I've seen in that price range have pretty terrible tuning software, so I'm curious which kit you're looking at.
EFI still struggles with two stroke piped engines in racing conditions. There's a group of (Very experienced) guys in the UK working with the KTM with EFI, so far it's either slow or it locks up. MotoGP teams couldn't get it quite right and reverted to carb. EFI for a two stroke OK for everyday or motocross trail use. But the changing demands across the rev range, resonance and reversion qualities of a highly tuned engine in racing conditions have made EFI elusive so far.
Turbo on a piped two stroke gives you a powerband of about 500RPM. Which means it will be a slow That said, anything over 50HP on most kart tracks barely makes a dent on your laptimes.
Where do i find a used VORTEX ROK Shifter cause i wanna work on it and i do wanna modify it and have some serious fun. Cause 1500$ would be perfect for me.
Which one would be perfect for me to find cheap? I want power i just want to drift it honestly cause im gonna turbo it and EFI it. If not ill use it for racing and just do that to my Rotax fr125 Max i just picked up i also own 2 yamaha kt100s but i wanna be able to shift it. Also im gonna give you a fallow to have you answer some of my questions i have
honsa would be the cheapest to find used. Drifting in a kart doesnt work.
Probably the cheapest to buy would be a CR80 or if you're able to fab up a mount and other items, a pitbike engine is another way to go. Neither of these will service with a turbo though.
Where do i find a used VORTEX ROK Shifter cause i wanna work on it and i do wanna modify it and have some serious fun.
Facebook groups
What type of motor is that Honda one ?
cr125
Dellorto carby + DG pipe and anything will go faster
WHY DID YOU NOT TELL US WHAT ANY OF THEM WEIGHED??? ding
It’s TM R1/R2 or nothing
Rok is slower, cheaper in quality, not as durable
Iame is an odd ball that kinda failed to
Deliver
Honda is dead
Motori Seven ! - My L3an with latest cylinder version is stronger then both R1 and R2. And it's 11 years old engine. Why I have pick Seven ? Because I found that EVERY engine is tuned inside factory by creator itself. With motori Seven you do not buy new engine and then send it to tuner to get most of it, you get it straight out from factory, even the bottom is completely polished it amazing. Also new L9 engine is a beast, and the fastest engine I have seen.