3

The bottom bracket that you see in the picture has a strange 16 teeth profile (3-1-3-1-...). I had this bike built a few years ago and I don't remember what model the BB is. I wonder what removal tool I can buy to remove and replace this BB.

I will list other components around the BB, which may help to identify the model:

  • track Miche Primato Advanced crankset (JIS)
  • Mash Work frame with BSA BB threading

bottom bracket picture

Edit: After dismounting the BB, I have its manufacturer/model information: VP Components VP-BC73.

Improve this question
1
  • I'd guess the other side is the same, once you get the crank off with a square-taper crank puller.
    – Criggie ♦
    Commented Jun 12, 2018 at 3:50

2 Answers 2

Reset to default
6

Looks like a typical 20 tooth (Park Tool BBT-22/32) tool should do the job. I'm not sure why every 5th spline is left out of this cup design, but visually the spacing looks the same.

Park Tool BBT-22

Improve this answer
5
  • 1
    After you eventually get the BB removed, you should add the manufacturer / model information into the question, as that could help others in the future asking about a similar BB.
    – renesis
    Commented Jun 11, 2018 at 23:07
  • @dlatikay I was also initially fooled by the lighting in the original photo. They are fused slots, not fused teeth. The extra teeth will fit the wider slot just fine.
    – jpa
    Commented Jun 12, 2018 at 7:06
  • upvoted (and deleted embarrassing comment :-))
    – dlatikay
    Commented Jun 12, 2018 at 7:10
  • 1
    @renesis Thanks for the answer, I have just orderered a BBT-22 tool. I will update the answer once I get the tool. and I manage to figure out manifacturer/ model of the BB out.
    – Alessandro Cosentino
    Commented Jun 12, 2018 at 8:12
  • 1
    The tool was correct. The BB is actually seized to the frame, so I will have to bring it to the LBS, but that's another story...
    – Alessandro Cosentino
    Commented Jun 29, 2018 at 20:01
1

This looks like a 20 spline lockring where pairs of slots at 12, 3, 6 and 9 o'clock are joined together.

Improve this answer
3
  • 2
    This doesn't add anything to renesis's answer.
    – Alessandro Cosentino
    Commented Jun 11, 2018 at 23:32
  • @AlessandroCosentino Could be both answers were posted close together and neither saw the other's answer.
    – Criggie ♦
    Commented Jun 12, 2018 at 3:49
  • 1
    @Criggie There's 25 minutes between them.
    – Mast
    Commented Jun 12, 2018 at 6:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.