Bolt on cogs

Yes appreciated, but you never drive your wheel with your disc brakes... only stop.

I know bolts are extremely strong etc esp. 8.8 or 10.9 tensile. Just seems a bit backward and more effort than buying a 120/130/135mm fixed hub.

Compatability becomes an issue with having to use a 3/8, 9.5mm or 10mm rear axle in a front hub, sounds a bit heath robinson.

Yeah and stopping will put just as much force on the hubs as you and your legs can. A lot of people on here seem to have funny ideas about the amount of force that is generated riding fixed compared to any other form of riding.

For the record, I ended up just getting a new track hub (and a new longer skewer to swap out). Was slightly more $ than the cog itself would have cost, but I demand instant satisfaction. Maybe would have had a go with one of these if they were available in stores.

Still have the hub, so who knows. May give it a go in the future.

On this note, does anyone have any idea about these?

http://cgi.ebay.co.uk/Brand-New-Shimano-TRACK-HUB-for-BOLT-ON-COG-FIXED-Wheel_W0QQitemZ380101410533QQcmdZViewItemQQptZUK_sportsleisure_cycling_bikeparts_SR?hash=item380101410533&_trksid=p3286.c0.m14&_trkparms=72%3A1688%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

you have to replace the bolts or some shit like that because of the forces acting on them
with the level hubs there is a piece of raised metal to take the weight and or force, and the bolts only act as a securing device

Those ebay ones already have are already modified they are fine. I've run a bolt on a disk hub on my mbt for a year now, it even still has it's q/r. If ridden down steps and done drops of up to about 18" on it. They are fine teh yare strong. The ideas that there is more force riding fixed are just crazy.

what a nonsense. If you'd trust a six inch rotor to stop you hurtling down a hill in an instance then the same fixture will be more than adequate to use as a fixed gear drive mechanism.

I'm thinking of getting the Level Hubs. I really like the idea of the knuckle interface. I also like the idea of being able to change the spacing. I think they look real nice too.

i'm getting round to building up a wheel like this, anyone heard of anyone's sprocket tearing out or damage being done to the hub because of bolts coming loose? lots of people i ask seem concerned that the sprocket isn't splined, it's only 6 bolts taking all the load etc. but i haven't yet heard of anyone having any problems with it. what's the word on the street?

Maintenance issues are no different to any other hub. You need to make sure everything is kept tight.

from my experience with downhill bikes and the forces put through discs the strength is no way a issue, i was running 200mm rotors at one point and had no problems at all and other times running a few bolts less and again still had no problems. if i had a disc mount cog set up i would bet my life that it would never break.

Listen to the voice of reason in the posts above- if those same six bolts can stop me and the bike from 30mph using a 180mm disc attached to the hub with 6 bolts then no way are you going to tear a sprocket off the hub.

Rydon- snap

Listen to the voice of reason in the posts above- if those same six bolts can stop me and the bike from 30mph using a 180mm disc attached to the hub with 6 bolts then no way are you going to tear a sprocket off the hub.

Indeed. If 6xM10 (or equivalent AF sized) bolts can hold back 500+hp of small block V8 clutch plate onto flywheel then I'm sure 6xM6 or whatever they are will adequately hold back any forces in play on a bicycle. I'd even go so far as to say that this bolt on setup is probably stronger than the conventional lock ring setup.

Does anybody know if replacement solid axles for front hope mtb hubs are commonly available? I think I might like to try this disc hub malarkey out.

I'd even go so far as to say that this bolt on setup is probably stronger than the conventional lock ring setup.

+1

Does anybody know if replacement solid axles for front hope mtb hubs are commonly available? I think I might like to try this disc hub malarkey out.

yeah probably as they are top of the range for mtb hubs but depends on what hub it is, a hope hub set up would be pimpin!

sorry, don't quite follow this. People are saying they could shear through what would add up to about 1" of hi-tens steel using only the power of their legs? suddenly I feel very inadequate...

You have not seen the size of the leg muscles that some on here sport.

Capable of splitting a pair of skinny jeans just by light flexion.

Yeah and stopping will put just as much force on the hubs as you and your legs can. A lot of people on here seem to have funny ideas about the amount of force that is generated riding fixed compared to any other form of riding.

This puzzles me. In my short time reading this forum I have learned that a belt drive would not be strong enough for fixed gear riding, even though it is strong enough for 1000cc+ motorbikes and 3 piece BMX cranks won't stand up to the rigors of commuting.

riding a fixie skidder is a zen thing. Once you have it down you can split the atom with your leg muscles, hi tensile steal is nothing.

In fact I read that fixie skidders are though to be the solution to the global energy crisis.

Did you know just 10 fixie skidders could provide the power needs for a town the size of Scunthorpe? We could turn Hackney into one giant power station. imagine the possibilities, all we have to do is believe. You want to believe, don't you?

from my experience with downhill bikes and the forces put through discs the strength is no way a issue, i was running 200mm rotors at one point and had no problems at all and other times running a few bolts less and again still had no problems. if i had a disc mount cog set up i would bet my life that it would never break.

I'd agree with this - and add that I'd imagine the chain would break long before the sproket bolts go. The end result would obviously be the same, no brake or drive and not great, but just saying that those bolt on cogs look bomber.

This puzzles me. In my short time reading this forum I have learned that a belt drive would not be strong enough for fixed gear riding, even though it is strong enough for 1000cc+ motorbikes and 3 piece BMX cranks won't stand up to the rigors of commuting.

riding a fixie skidder is a zen thing. Once you have it down you can split the atom with your leg muscles, hi tensile steal is nothing.

In fact I read that fixie skidders are though to be the solution to the global energy crisis.

Did you know just 10 fixie skidders could provide the power needs for a town the size of Scunthorpe? We could turn Hackney into one giant power station. imagine the possibilities, all we have to do is believe. You want to believe, don't you?

You guys just made my day, haha!

o.k. so i've replaced the axle, but what bearings would be best? are larger bearings used in the rear hub because they take more weight? i've put some 1/4"bearings in but they don't feel great, is it best to put the 1/32" back in?

Try the same size as you took out?

This puzzles me. In my short time reading this forum I have learned that a belt drive would not be strong enough for fixed gear riding, even though it is strong enough for 1000cc+ motorbikes and 3 piece BMX cranks won't stand up to the rigors of commuting.

actually it's just the illusion of it being made out of rubber, and rubber = stretch thus stretch = break, therfore weak.

but it's made out of plastic (I think?) and are extremely strong, it is strong, just people can't really see it being that strong due to the illusion i mentioned above.

In the mean time, here's another optical illusion for your viewing pleasure: