Thanks man. Those Bajas dug some crazy holes on it, super gnarly tires. SoItchy the cat had to come check out what was going on. He showed me the path thru the course :)
Digging tires for sure man. Ive also got em on the heavy af Defender Trx4 atm, they just eat up the terrain like crazy, its a strange feel coming from the Hyrax which are super technical tires.
YES!!!! Agree very much with what you're saying. I'm very far from an expert, but tall lugs bend and flex. More so when either small in size, like tall pins. Or even with bigger lugs, like these, when notched out or hollowed out. I swear, half the big lug tires would run much better on dry/indoor courses if people ran them "backwards". My more extensive experience with reversing tires is based on years mountain biking/racing in the 80/90's. A lot of tires back then were directional, but for soft conditions. Crap on dry though. But if you ran them "backwards" they improved quite a bit. But IMO, the same applies here. Flip those and give them a try on the logs. Also, I bet if you took some nail clippers and trimmed those knobs down to a millimeter tall, they be much better. Maybe even try taking the inserts out, if you find the tire is stiff. (doesn't look like you're getting much squish from whatever you've got in them.) I think you could even soften a stiff tire by sanding down the sidewall to thin it out. To get that done precisely would require quite a bit of set-up, tools and experience. But, if you aren't super picky, stuff the tire with the firmest foam you have (or double up the foam), figure a way to mount the wheel in a hand drill and have at the sidewalls. Either mount the drill in a vise or clamped to a table and use sandpaper on a wood block. Or glue some sandpaper to a piece of wood and clamp that, bringing the tire to it. Just don't go at it too much! LOL! 👍👍👍
I so know what your talking about here with the tires reversed. I run the Glads tires backwards as the lugs get more flex and run way smoother. These lugs are super stiff as they are a loose dirt or softer terrain type tires. Back in the 90s I used to run on my GT Karakoram K2 those Panaracers Smoke foldable tires. Totally directional tires, never flipped em around though. :) On the indoor course they do ok but when it comes to stiff high grip terrain like this, that 33% underdrive creates the massive rear tire drag and causes the bouncing your seeing. Ive even been watching a few others that run these tires and the same happens even without an OD/UD and they just bounce all over when hitting technical lines. I dont think Ill cut em down or chop the lugs in any way as Ive got these for the dirt hills around here. Going to put the Trenchers back on and show the same lines here when it stops raining, probably next week sometime.
@@DurpVonFronz Funny enough, Smokes were one of the tires I was thinking of. Farmer John's and Farmer John's Cousins where another, around '88. Some of the hopping probably comes from the tall lugs bending under pressure, then snapping back when they get unloaded. Then that hopping just starts becoming a rhythm of sorts. Loading and unloading starts cycling and the hopping continues. That's how wash boarding on gravel roads starts and continue to get worse. I think a tread design of off-set, spaced knobs would work good for these crawlers. Something like the old 80's Fisher Fat Trax MTB tires.
@@wingnutbert9685 Yea thats why Im going back to the Trenchers, just so many lil fingers on that tire spaced out perfectly they get traction like no other, well maybe except for the Hyrax, but they are just too small at 52mm. Its totally from the spacing and the underdrive drag, then the front starts that rhythm you are talking about.. TERRIBLE for technical lines.. LOL
At about 3:11- Looks like there's some sort of slipping/skipping somewhere in the drive line. Noticed it particularly on the rear passenger wheel. And doesn't look like a tire tread slip. Maybe a few missing teeth on the drive axle gear on that side? Loose wheel or hex?
Overdrive is not conducive to extreme grippy surfaces. Try that rig on rocks that will allow for some tire slippage. Or, get rid of the overdrive if this is the only surface you run on.
There is a portion of the vid that is on rocks and it works somewhat ok. I know what your saying and just by changing the tires to the Trenchers this thing crushes the lines shown here. I was watching other folks run their rigs with the same tires and I was seeing the same sort of lug bouncing. These tires arent meant for rocks and what not. On my indoor course, the Carpet Mountain, these tires do much better then outside.
That’s a sick outdoor course Durp! Love the trail kitty spotlight lol
Thanks man. Those Bajas dug some crazy holes on it, super gnarly tires. SoItchy the cat had to come check out what was going on. He showed me the path thru the course :)
Those tires are not a climber forsure, Nice to see you out on theoudoor course.
Digging tires for sure man. Ive also got em on the heavy af Defender Trx4 atm, they just eat up the terrain like crazy, its a strange feel coming from the Hyrax which are super technical tires.
YES!!!! Agree very much with what you're saying. I'm very far from an expert, but tall lugs bend and flex. More so when either small in size, like tall pins. Or even with bigger lugs, like these, when notched out or hollowed out. I swear, half the big lug tires would run much better on dry/indoor courses if people ran them "backwards". My more extensive experience with reversing tires is based on years mountain biking/racing in the 80/90's. A lot of tires back then were directional, but for soft conditions. Crap on dry though. But if you ran them "backwards" they improved quite a bit. But IMO, the same applies here. Flip those and give them a try on the logs.
Also, I bet if you took some nail clippers and trimmed those knobs down to a millimeter tall, they be much better. Maybe even try taking the inserts out, if you find the tire is stiff. (doesn't look like you're getting much squish from whatever you've got in them.)
I think you could even soften a stiff tire by sanding down the sidewall to thin it out.
To get that done precisely would require quite a bit of set-up, tools and experience. But, if you aren't super picky, stuff the tire with the firmest foam you have (or double up the foam), figure a way to mount the wheel in a hand drill and have at the sidewalls. Either mount the drill in a vise or clamped to a table and use sandpaper on a wood block. Or glue some sandpaper to a piece of wood and clamp that, bringing the tire to it. Just don't go at it too much! LOL!
👍👍👍
I so know what your talking about here with the tires reversed. I run the Glads tires backwards as the lugs get more flex and run way smoother. These lugs are super stiff as they are a loose dirt or softer terrain type tires. Back in the 90s I used to run on my GT Karakoram K2 those Panaracers Smoke foldable tires. Totally directional tires, never flipped em around though. :) On the indoor course they do ok but when it comes to stiff high grip terrain like this, that 33% underdrive creates the massive rear tire drag and causes the bouncing your seeing. Ive even been watching a few others that run these tires and the same happens even without an OD/UD and they just bounce all over when hitting technical lines. I dont think Ill cut em down or chop the lugs in any way as Ive got these for the dirt hills around here. Going to put the Trenchers back on and show the same lines here when it stops raining, probably next week sometime.
@@DurpVonFronz Funny enough, Smokes were one of the tires I was thinking of. Farmer John's and Farmer John's Cousins where another, around '88. Some of the hopping probably comes from the tall lugs bending under pressure, then snapping back when they get unloaded. Then that hopping just starts becoming a rhythm of sorts. Loading and unloading starts cycling and the hopping continues. That's how wash boarding on gravel roads starts and continue to get worse. I think a tread design of off-set, spaced knobs would work good for these crawlers. Something like the old 80's Fisher Fat Trax MTB tires.
@@wingnutbert9685 Yea thats why Im going back to the Trenchers, just so many lil fingers on that tire spaced out perfectly they get traction like no other, well maybe except for the Hyrax, but they are just too small at 52mm. Its totally from the spacing and the underdrive drag, then the front starts that rhythm you are talking about.. TERRIBLE for technical lines.. LOL
At about 3:11- Looks like there's some sort of slipping/skipping somewhere in the drive line. Noticed it particularly on the rear passenger wheel. And doesn't look like a tire tread slip. Maybe a few missing teeth on the drive axle gear on that side? Loose wheel or hex?
Good eye man, but its not in the drive line, this thing is buttery smooth, its all the tire and those big lugs and that underdrive. :)
Overdrive is not conducive to extreme grippy surfaces. Try that rig on rocks that will allow for some tire slippage. Or, get rid of the overdrive if this is the only surface you run on.
There is a portion of the vid that is on rocks and it works somewhat ok. I know what your saying and just by changing the tires to the Trenchers this thing crushes the lines shown here. I was watching other folks run their rigs with the same tires and I was seeing the same sort of lug bouncing. These tires arent meant for rocks and what not. On my indoor course, the Carpet Mountain, these tires do much better then outside.