Hi fixies

I have an old triple square taper Sugino giga chainset from a mountain bike, the middle ring looks better for wear n' worthy of becoming the new drive for my fixed roadie frame. Is it possible with the use of washers / smaller bolts or whatever method as i'm new to fg to convert it? what tools would i need?

cheers

www.sheldonbrown.com/fixed-conversion.html should have everything you need to know.

Yes.


Hex wrench.

This is a mid mounted triple, I did not like the thin mid ring so I replaced with a non-ramped Blackspire ring.
the ramped ring was too thin and flexed a lot.

Obviously I've got some gears back (don't try a tensioner like that, it's for the Der.)
If you just mount the ring, get bmx single plate chainring bolts..I using longer as I am going through 2 rings...I used the bmx bolt to fill the granny holes (looks cleaner, keeps mud out).

My guard is the original 46T with the teeth ground off. I'm not sure if the rear mounting of the cog would be easier to get the straight chainline.

Probably the only real thing i'd like to say is check the chairing -no Biopace ovals, no ramps, and not flexy.
( my blackspire was mm thicker and beefier.)

being a geared rider I probably shouldn't give advice...maybe something is relevent..

actually, sheldon says nothing about this. but wouldnt the q factor of mtb cranksets be uncomfy on the road? ehh, i guess people ride mtbs everywhere these days. what about chainline issues? seems like it would be hard to get a decent one. isnt that why people dont ever use road triples for conversions?

Man, I have to read before posting.. a road frame ..

The spyder will be too far away from the bb? Maybe if you ordered an axle that the taper was closer to the bb.

What exactly is a 'chainset'? Chainring? Are you attemting to mount a mtb spyder on a road bb axle? (no go).

Think I better go back to the geared bikes forum..

I have a SS bike I set up with a spare Sugino AT triple crankset. This crank used spacers and long bolts to attach the inner ring, so there are no cast protrusions to run into the chainstay when the crank is tucked in closer.

I flipped the B.B. axle around and put the ring on the inner (middle) position and it lined up quite nicely.

Try it out.

And Jeff, chainset is the commonly used name for a crankset in Britain. They are even reffered to as chain hangers or just hangers in some places. The Brits also refer to derailluers as mechs, etc....

on my p.1 all it needs is washes and noermal mounting bolts

Yeah chainset means crankset in U.k. When folk mention cranks - we think its just the arms.

Actually away with the sugino mtb one...i've decided to use the inner ring and arms of an old shimano 105 biopace chainset, will i need bmx bolts or will washers do the trick to fill in the gaps?

6 of one, half.....

I've used washers on several bikes (cheap would be my middle name if I could afford one) and they've worked fine. If you really ride hard, I'd spring for the BMX bolts, one more thing that won't loosen under load.

I've done it with some shorter chainring bolts, courtesy of my local shop. Hubjub (www.hubjub.co.uk) do little baggies of short bolts for exactly this job. Chainline from the middle ring should be GoodEnough[TM].

I did this-- used a shimano deore crankset and just pulled the two smaller chainrings off the thing. (this is on a steamroller/road frame) I used the BMX shorter chainring bolts.

The chainline was all wrong-- and I actually dumped the chain because of it. So I flipped the chainring from the outside of the crank (where it sat lovely in the crank) to the inside. That made the chainline better, but still not perfect. BUT since the ring had nothing to sit on, and bolts aren't really made to deal with a ring just floating on them, the chainring started shifting around while I was riding. Now I just tighten the chainring bolts daily, which is a pain in the ass, but it works.

Long story short-- just buy a damn track crank if you can afford it. Saves headaches.