Help please. Suntour cx pro bottom bracket size

[Chris D]

Hi. I would like too fit the above chainset. I googled bottom bracket size wanting the axle length which seems too be 125mm. I can't find a WTB grease guard bottom bracket in that size. But I did seem to find on ebay a cheap sealed bearing Suntour bottom bracket 68x122. I also believe the square taper axle should have the corners rounded slightly?

1. Does 3mm make me that much difference? It will be running with a Shimano 9 speed cassette.

2. Are these bottom brackets much good functionality wise as only £13.00 posted?

3. Does anyone have a suitable grease guard one they would like too sell please?

 

[ishaw]

Re:

Assuming you have the 110 BCD version and not microdrive, iirc 125mm is correct. You could get away with a slightly smaller one depending on the frame I guess. As for a cheap bb, I can't say with any experience how good/bad it will be, but if it were me, I'd get one and try it. At least you can ride until you find the right one.

 

[mk one]

Where did you look? Found a few on ebay

A nice NOS 125mm one here

https://www.ebay.co.uk/itm/New-NOS-Sunt ... SwWqpauFOQ

mark

 

[Chris D]

Re:

Thank you both for the assistance. I did actually see the grease guard one from the states but wanted to check it was correct. And not sure the bike in.general justifies £100 on a bottom bracket?