What Have You Fettled Today?

[si_c]

You missed the bit where I explained that the frame doesn't take BB30 BBs! It is designed for old-fashioned square taper or Hollowtech.

My BSA30 BB fittings have standard threads, just enough room for the 30mm axle to fit through, and then squeeze the bearings in outside the frame's BB shell. The problem is that there is not enough space for decent sized ball bearings. I realised from the start that these little ball bearings would have a limited lifetime but I was hoping for 1-2 years, not 1-2 months!! I reckon that the quality of the original bearings is poor, and am hoping that better quality replacements would last 10+ times as long!

I'm using a BB386evo BB, it's a 30mm spindle with the bearings outside the frame, I've got decent life out of them, usually 8-10k km per BB with a lot of that in bad weather. But I do service them regularly - pop the seals off clean the bearings and regrease.

Might be worth doing that with the BB30 external bearings.

 

[ColinJ]

Might be worth doing that with the BB30 external bearings.

BSA30!

The clicking was much worse today so I think at least one ball bearing in the sealed bearing has suffered death by ColinJ awesome leg power attack.

It looks like I need a 6806 2RS replacement like this...

You can probably imagine how puny the ball bearings are in that?

 

[Jameshow]

BSA30!

The clicking was much worse today so I think at least one ball bearing in the sealed bearing has suffered death by ColinJ awesome leg power attack.

It looks like I need a 6806 2RS replacement like this...

View attachment 764440
You can probably imagine how puny the ball bearings are in that?

My money's on carp bearings sorry!

 

[si_c]

BSA30!

The clicking was much worse today so I think at least one ball bearing in the sealed bearing has suffered death by ColinJ awesome leg power attack.

It looks like I need a 6806 2RS replacement like this...

View attachment 764440
You can probably imagine how puny the ball bearings are in that?

Yeah the bearings are quite small on that, the BB386evo cranks have an axle thats a little longer so the bearings can be a bit bigger.

Definitely worth picking the seals off carefully and then regreasing, I found that it was always the NDS which seemed to need doing first but did both at the same time. At least before and after winter.

 

[Punkawallah]

Another puncture, rear wheel. Compared puncture point with previous tube, same place. Investigated rim, spoke end seemed ‘high’ in the nipple, but not ‘out’. Filed nipple head, spoke end, re trued and puncture fixed. Added a protective patch of old tube over the nipple head, and see how we go.

 

[si_c]

Another puncture, rear wheel. Compared puncture point with previous tube, same place. Investigated rim, spoke end seemed ‘high’ in the nipple, but not ‘out’. Filed nipple head, spoke end, re trued and puncture fixed. Added a protective patch of old tube over the nipple head, and see how we go.

It's been said before, but Velox rim tape will solve this sort of issue.