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Birzman Bottom Bracket Socket for BSA30 / 386

£44.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
A double-sided B.B. socket born out of the increasing popularity of 30mm crank spindles.

Made from CNC machined 7075 aluminium it's durable and provides very precise engagement with all the notches of the bottom bracket so won't chew up the bottom bracket.

Compatible with Rotor BSA 30, SRAM DUB, RaceFace Cinch, Zipp Vuma, Hawk Racing BB3086 or other 12-notch 46.5mm external bearing bottom bracket cups.

Compatible with FSA EVO 386 or other 16-notch 48.5mm external bearing bottom bracket cups.

- 1/2" Dr
- CNC machined 7075-T6 aluminium
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Questions & Answers (2)
And is the one your holding now...
01 Jul 2020
for a 30 or a 386? I'm sorry, but you're confusing your suctomers! See waht I maen?
Both, as the top has BSA 30 and bottom has 386 fittings.
Which one of the two is the actual product?
01 Jul 2020
There are two pictures of two different items.
The first image is accurate, on the product I'm holding how the Knurling is only on the lower part of the tool.