Bike maintenance for dummies.

101 watchers
14 Jan
9:18am, 14 Jan 2024
22,976 posts
  •  
  • 0
larkim
This requires a good soak in a releasing agent, then bolting the bb tool to the square spline so it didn't shift. Couldn't get my wrench inside an extending pole for leverage so tried a few firm whacks with a large "persuader". Still no joy.

In the end placed the frame (no wheels on) in the lawn, upright. Held onto the frame and stood with one foot on the wrench to put most of my 75kg into the wrench; a couple of bounces and it eventually moved. Fun indeed!

It was the bolting the tool to the spline that was the really important bit. Annoyingly the threads inside the square taper are fine pitch and I could only find normal pitch bolts in the garage, but with a bit of brute force I managed to screw one in tight enough for it to hold. Ok whilst I knew I was chucking out the bb anyway.
14 Jan
9:31am, 14 Jan 2024
10,072 posts
  •  
  • 0
Northern Exile
I recognise that scenario. I put the frame on a well-padded massage bed and then knelt on it, while my neighbour held the head and seatpost. I used my long torque wrench and just managed to shift it. I replaced it with a Shimano hollowtech one, I don't subscribe to square taper BBs although I know a lot of people use them with FSA kit.
14 Jan
1:12pm, 14 Jan 2024
22,977 posts
  •  
  • 0
larkim
I was tempted to go with a HT one but that would have been new cranks too and I only really needed to do big chain ring, chain and cassette. Actually cassette X2 as we use the bike on a turbo so have a spare wheel with a turbo tyre on it. Another £50+ on a crankset didn't seem greatly needed and at least I know I've got all the tools for square taper BBs.
14 Jan
1:29pm, 14 Jan 2024
10,073 posts
  •  
  • 0
Northern Exile
That's fair enough. Mine was on a full rebuild so I justified the expense.

Got something to say?

To join the discussion, sign in or join us.

About This Thread

Maintained by DeeGee
A thread for your questions about fixing common bike problems.

Need help naming a part? jimlangley.net

Related Threads

  • beginners
  • cycling









Back To Top
X

Free training & racing tools for runners, cyclists, swimmers & walkers.

Fetcheveryone lets you analyse your training, find races, plot routes, chat in our forum, get advice, play games - and more! Nothing is behind a paywall, and it'll stay that way thanks to our awesome community!
Get Started
Click here to join 112,208 Fetchies!
Already a Fetchie? Sign in here