uprightbent

Thanks in advance for any advice. Trying to find the spindle length for a Sugino AT triple crankset. It's on Velobase, but no spindle length has been listed. A recent comment on the Velobase page from 2022 says they were originally 127.5 and not easy to find. Seems like a very long one from my limited knowledge. I have a Sugino GT triple, from the same year (83) which requires a shorter 124.5. Tempted to try that size since I have one ready to go, but I'd like to get it right the first time avoiding unnecessary removal and reinstalling the cranks for the sake of the tapers.

Velo Orange lists a 127.0 as their largest size but I don't really want the new sealed type unless that's my only option. I have a Phil with a zillion miles on it that might have a little too much play in it, but I'm told that'll work with its adjustability. I know the bike model doesn't matter relative to the spindle length, but this is off an 83' Trek 720 and so many here are familiar with that bike and may have had a similar situation.

Thanks again!

Kontact

$8:

https://www.amazon.com/Neco-Sealed-C...7&gad_source=1

bboy314

Plenty of 127mm options available, that does seem appropriate for this crank but I’m not sure offhand. I wouldn’t worry too much about installing and removing a couple times for test fit purposes.

Are you specifically looking for cup and cone? That will leave you with vintage, or very low quality new options. Though maybe someone is still making nice loose ball BBs?

Jeff Wills

I had a couple Sugino Aero Tour cranks decades ago. They’re the peak of the ‘80’s touring cranks, just before the ATB tsunami. As such, spindle length varied by application. 122.5mm would be appropriate for a road/touring bike while 127mm or 132mm would be used on a mountain bike.

BITD, we’d have a selection of spindles in the shop to try out. If we put a bike together and the cranks hit the chainstays, we’d try the next longer spindle.

markk900

Try the one you have: you will be able to tell pretty quickly if either arm is going to contact anything or mess up chain line too much; tapers will hardly notice you putting them on and off a couple of times.

uprightbent

Thanks to all for your advice. I'll try the one I have (124.5) and not worry too much about the tapers.