Bicycle TutorBicycle Tutor

Show off your bike!

Related video tutorials:
Bottom bracket... Strange style I haven't seen before?
#1
Good afternoon internet hive mind. A friend has inherited a bike that has a wobbly bit somewhere inside the bottom bracket. I'm taking bits from old bikes to cannibalise into a new one to make it rideable and to be honest the whole thing is a great learning experience for me anyway, but I've hit a problem. In the past I've removed the bottom bracket with the correct tools, then to remove the bit that contains the ball bearings I just use an adjustable wrench to unscrew it. On this bike it isn't nice and hexagonal shaped to allow a wrench to grip properly, it keeps sliding off. It looks like some kind of unique tool is needed, can anyone assist me in removing this so I can replace the bottom bracket? I've attached a picture of the offending bit.

[Image: bKx4sI5.jpg]
Reply
#2
It looks like a cup-and-cone bottom-bracket to me - square taper axle and weird (well, not that weird) cups. See also (and linked sites therein)
http://sheldonbrown.com/tooltips/bbcups.html

Good luck!
Reply
#3
(07-21-2016, 11:36 AM)Joe_W Wrote:  It looks like a cup-and-cone bottom-bracket to me - square taper axle and weird (well, not that weird) cups. See also (and linked sites therein)
http://sheldonbrown.com/tooltips/bbcups.html
Parktool hcw-11

Good luck!
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Replacing a bottom bracket on a Dahon coxen00 9 11,802 06-11-2017, 10:42 PM
Last Post: painkiller
  BMX Bottom Bracket Creaking and Clicking felpel102 2 4,400 10-15-2016, 08:36 PM
Last Post: GeorgeET
  No spindle in the bottom bracket? Jacomo 5 3,441 09-18-2015, 11:11 AM
Last Post: painkiller
  Shimano BB-UN26 bottom bracket torque specs Tranced 5 5,421 09-13-2015, 05:33 PM
Last Post: DaveM
  Help to identify and upgrade Huffy BB bottom bracket rpesq 3 3,847 09-04-2015, 04:35 PM
Last Post: DaveM
  Frozen bottom bracket on Katmando? elmore leonard 8 4,024 05-12-2015, 11:28 PM
Last Post: elmore leonard
  Crank bearing bottom bracket edge 4 3,910 05-08-2015, 10:56 PM
Last Post: edge
  German FAG bottom bracket Konstantin 3 4,046 02-23-2015, 10:41 PM
Last Post: Konstantin
  Bottom Bracket for a 1973 Schwinn Continental cvs1998 6 3,530 01-01-2015, 06:56 PM
Last Post: GeorgeET
  Bottom Bracket Removal Kingo 8 5,730 11-11-2014, 04:16 AM
Last Post: cny-man

Forum Jump:



ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy / Created by Alex Ramon

feed