I was watching trials riders on unicycles tonight and they use a 20 X 2-1/2" tire that might make cutesy wheels for a motorbike. Just a thought.
Tires
- Thread starter trackfodder
- Start date
Re: Fat tires
always better for stablity to hav more rubber on the ground.
I got a 4.5" rear chopper tyre. Maby a bit over board?? LOL
always better for stablity to hav more rubber on the ground.
I got a 4.5" rear chopper tyre. Maby a bit over board?? LOL
Re: Fat tires
how do you get good clearence running fatter tires, i got 2.125 and forever running a fine line between good alignment to tire rubbage :S
how do you get good clearence running fatter tires, i got 2.125 and forever running a fine line between good alignment to tire rubbage :S
Re: Fat tires
Rebuild the rear end or at least spread the original stays. There are extra fat tires I have seen with extra fat rims that would take a custom rear end. The primo set up I think. Surley is offering a fat rim called Large Marge for the Pugsley frame and fork.
The Endomorph tire is 94mm wide (3.7") x 740mm tall (29") on our rims. It’s the highest-volume production bicycle tire on the market at this point. And, at 1260 grams, our 60 tpi tire weighs 300–400 grams less than lower-volume 3"-wide DH tires. Most 3" DH tires hover around 1600 grams.
Rebuild the rear end or at least spread the original stays. There are extra fat tires I have seen with extra fat rims that would take a custom rear end. The primo set up I think. Surley is offering a fat rim called Large Marge for the Pugsley frame and fork.
The Endomorph tire is 94mm wide (3.7") x 740mm tall (29") on our rims. It’s the highest-volume production bicycle tire on the market at this point. And, at 1260 grams, our 60 tpi tire weighs 300–400 grams less than lower-volume 3"-wide DH tires. Most 3" DH tires hover around 1600 grams.
Last edited:
Re: Fat tires
Pre-war fat tire bikes are the best for this, the 24x3 tire isn't as tall as a 26" tire/wheel combo...just a little smaller, it still gives the appearance of a 26" wheel!
Re: Fat tires
Another option is to build your motormounts offset. I built mine 1 cm off to fit hookworms. I also had to dish the rear wheel , and spread the reart chainstays, and use a long rear axle. Might need wider crank arms or an adapter. But it is doable.
Another option is to build your motormounts offset. I built mine 1 cm off to fit hookworms. I also had to dish the rear wheel , and spread the reart chainstays, and use a long rear axle. Might need wider crank arms or an adapter. But it is doable.
Attachments
Re: Fat tires
Those Surly wheels and tires would be flipping sweet on a MB. They're pretty expensive though, plus the cost of a frame to clear them.
Those Surly wheels and tires would be flipping sweet on a MB. They're pretty expensive though, plus the cost of a frame to clear them.
Re: Fat tires
Maybee a surly in the rear and a matching standard width in front..Laurel and hardy style
Maybee a surly in the rear and a matching standard width in front..Laurel and hardy style
I need to replace a 26" x 1 3/8" tire and was wondering if I could put a bigger tire on the rim.
I always see tubes coming in sizes that will fit a number of different tires and would like to know if it's the same with tires. The rim is a narrow one for road bikes, but will, say, a mtb tire work on it?
I always see tubes coming in sizes that will fit a number of different tires and would like to know if it's the same with tires. The rim is a narrow one for road bikes, but will, say, a mtb tire work on it?
Re: What tire will work?
no it wont,you need a new wheel if you want to use a mountain bike tire.
no it wont,you need a new wheel if you want to use a mountain bike tire.
is anyone running with tires wider than 1.75? the reason I am asking is last year I started with 1.90s
and my drive chain would eventualy tear out the sidewall.
has anyone got any feedback on this? I really want to run the fattest tires I can and its time to replace them
is there any harm in possibly moving the big sprocket out a bit or will that be too misaligned? has anyone experimented with this?
.....Rob in Wallyworld
and my drive chain would eventualy tear out the sidewall.
has anyone got any feedback on this? I really want to run the fattest tires I can and its time to replace them
is there any harm in possibly moving the big sprocket out a bit or will that be too misaligned? has anyone experimented with this?
.....Rob in Wallyworld
Re: Fat tires?
I am running 2.125's and I have managed to get the chain to clear the tire. Just try tweaking the engine position and chain tensioner.
I am running 2.125's and I have managed to get the chain to clear the tire. Just try tweaking the engine position and chain tensioner.
Re: Fat tires?
A little lateral misalignment will not hurt. I wouldn't go much more than 3/8". Check your sprocket too. Most of them have a 'dished' design whereby the teeth are further to one side than the other. If the teeth on the sprocket are toward the wheel you can reinstall the sprocket with them on the outboard side instead. This won't give you much, maybe 1/4" but that might be enough to give you the tire clearance you need. Make sure your wheel is centered in the frame also and not cocked to the left. You didn't say where the chain is hitting the tire but if it is the lower side, the one with the tensioner, you can get some clearance by moving the tensioner wheel out a bit. Make sure it is running true and you don't have excess chain slack. You want 1/2 to 3/4" slack in the chain measured at the center of the chain span. Hope these suggestions help you out. Good luck.
Tom
A little lateral misalignment will not hurt. I wouldn't go much more than 3/8". Check your sprocket too. Most of them have a 'dished' design whereby the teeth are further to one side than the other. If the teeth on the sprocket are toward the wheel you can reinstall the sprocket with them on the outboard side instead. This won't give you much, maybe 1/4" but that might be enough to give you the tire clearance you need. Make sure your wheel is centered in the frame also and not cocked to the left. You didn't say where the chain is hitting the tire but if it is the lower side, the one with the tensioner, you can get some clearance by moving the tensioner wheel out a bit. Make sure it is running true and you don't have excess chain slack. You want 1/2 to 3/4" slack in the chain measured at the center of the chain span. Hope these suggestions help you out. Good luck.
Tom
Re: Fat tires?
i wouldnt let my chain rub my tire if it was wide.
you can use spacers for the sprocket or flip it over.
and you can offset the engine my moving it over a little or
plus adjusting the chain tensioner but remember its not a derailer.
i wouldnt let my chain rub my tire if it was wide.
you can use spacers for the sprocket or flip it over.
and you can offset the engine my moving it over a little or
plus adjusting the chain tensioner but remember its not a derailer.
Re: Fat tires?
I am a little scared of the drive chain "jumping track"but what I really dont want is that little tiny wear in the sidewall where a bubble begins to form and out of the blue....BOOM
I am a little scared of the drive chain "jumping track"but what I really dont want is that little tiny wear in the sidewall where a bubble begins to form and out of the blue....BOOM