Fixed off roading

[flash]

I had a play the last few winters fixed and realise I have a "spare" bike and a flip flop wheel. Thinking 32 x 15, as I have to ride on the road to get to mud.

But can anyone suggest where I can get a short 150 - 160mm chainset capable of taking a 32t ring?

 

[hamster]

Highpath did some cut down cranks for the back of each of my tandems.

www.highpath.net

I'd heard that Chris Bell has not been well recently, but he does a fab job.

Older cranks like Shimano early 90's 110 PCD ones are good for conversion as the arms are good and thick. But you won't get a 32T ring to fit, it's 34T min.

Off the shelf then it's TA usually - and that ain't going to be cheap, although they are nice cranks. Middleburn do 165's apparently, not sure if their forging can go as short as 160mm.

 

[flash]

Thanks for the info. Both options are a tad too much as this is going to be knocked about a bit. Soeone suggested junior / kids cranks.

 

[cce]

Speak to Cab, he probably has some spares - i believe he's had some sets shortened.

failing that, you can get middleburn RS7s in 165

 

[flash]

Tried Cab. He's come up with the shortening idea. May be the best route..

 

[mikee]

can i ask why shorter cranks for an off road fixed ?

 

[Drencrom]

can i ask why shorter cranks for an off road fixed ?

Cornering. You can't stop the pedals from turning in the bends, so you'll ground the arms pretty easily. Try it on a bike with a freewheel next time you're out - keep pedalling through the bends, it's nuts!

 

[hirosawa]

Older cranks like Shimano early 90's 110 PCD ones are good for conversion as the arms are good and thick. But you won't get a 32T ring to fit, it's 34T min.

Think some early 90's Shimano are 94 PCD - like LX of a particular year? Certainly some, if not all, of Suntour XC line are 94 PCD and are good and thick for conversion.

 

[maro]

I had a play the last few winters fixed and realise I have a "spare" bike and a flip flop wheel. Thinking 32 x 15, as I have to ride on the road to get to mud.

But can anyone suggest where I can get a short 150 - 160mm chainset capable of taking a 32t ring?

Any good?
Other configuration possible
I would mind of the maximum admissible load though

http://www.ebay.com/itm/AC-Mini-LE-Cran ... 439f6b9eb8

 

[mikee]

can i ask why shorter cranks for an off road fixed ?

Cornering. You can't stop the pedals from turning in the bends, so you'll ground the arms pretty easily. Try it on a bike with a freewheel next time you're out - keep pedalling through the bends, it's nuts!

thanks