Help: Crank doesn't like axle
#1
Thread Starter
Junior Member
Joined: Nov 2016
Posts: 7
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Bikes: 1986 Peugeot Y611 50526
Help: Crank doesn't like axle
Hey guys, could use some help.
My Peugeot parts bin special just got its axle, and unfortunately, the crank doesn't slide along the shaft enough to allow a nut to catch the axle threads. Is there a remedy to this?
Thanks,
-Toni
My Peugeot parts bin special just got its axle, and unfortunately, the crank doesn't slide along the shaft enough to allow a nut to catch the axle threads. Is there a remedy to this?
Thanks,
-Toni
#2
Senior Member


Joined: Feb 2012
Posts: 19,381
Likes: 5,528
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
I wonder if you're mixing incompatible cranks and spindles. While the taper angle and widths are pretty standard these days back in the 1970s there were a few other fits. "Silstar" was one.
The fix is to get a matching arm and spindle (and the spindle needs to be the right length too of course). How about more info? Brands, photos? Andy.
The fix is to get a matching arm and spindle (and the spindle needs to be the right length too of course). How about more info? Brands, photos? Andy.
#3
.
...despite the fact that you can interchange a lot of square taper cranks and spindles, as stated above it's not universally possible. There were some completely different standards. Ofmega cranks and the ones Ofmega made for Avocet are two others that were very different and require a specific spindle.
...despite the fact that you can interchange a lot of square taper cranks and spindles, as stated above it's not universally possible. There were some completely different standards. Ofmega cranks and the ones Ofmega made for Avocet are two others that were very different and require a specific spindle.
#4
Senior Member

Joined: Sep 2010
Posts: 8,327
Likes: 1,112
From: Roswell, GA
Bikes: '93 Trek 750, '92 Schwinn Crisscross, '93 Mongoose Alta
It sounds like you may be trying to install an ISO crank on a JIS spindle, or similarly mismatched parts: https://www.sheldonbrown.com/bbtaper.html
#5
Old fart



Joined: Nov 2004
Posts: 26,411
Likes: 5,350
From: Appleton WI
Bikes: Several, mostly not name brands.
You likely need either a different crank or a different axle. As noted above, there are two major categories of spindle tapers, and a vast array of lengths. Once you find the right taper, don't neglect to make sure the length is appropriate for a decent chainline.


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