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CONV BB – SHIMANO MOUNTAIN Product Code: MARLs-3149

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FREE DELIVERY*

Over $99. Otherwise $5 flat-rate.

NOTE: The weekly amounts are a guide only. The weekly payment amounts above are calculated by spreading the amount financed over the term of the loan. The actual minimum monthly payments are 3% of the outstanding balance or $20, whichever is more. On expiry of the interest free term, the finance companies prevailing interest rate will apply to any outstanding balance. The minimum monthly payments of 3% or $20 will not pay off the purchase amounts within the promotional period. Credit lending criteria apply.
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Choose Product Option Size GUIDES

Designed to be a proper BB for installing Shimano™ Hollowtech II
cranks in either BB30 or PF30 mountain frames. Our patent pending
design keeps the cartridge bearings outboard of the frame right on
Shimano™ spec for greater rigidity and free of frame/c-clip
tolerance issues that other systems deal with.

Simply press in the longer non-drive-cup, then the shorter drive cup
threads into it. As the drive cup threads in, our trademark Collet
system expands to a precise limit evenly dispersing pressure for a
super tight fit. With both cups connected and our collet set exactly
to spec, there is no chance the bearings can come out of alignment or
wiggle/walk out of the frame. This design also uses a compressible
o-ring on the _non-drive side_ cup to compensate for frame shell
width discrepancies.

SPECS:
 

* This version for Shimano™ Hollowtech II cranks only.
* Designed precisely to Shimano bearing stance & chain line spec.
* Forged & machined heat-treated 7075 T6 Aluminum
* For 73mm BB30 or PF30 mountain frames
* Not for BBRight, BB386EVO, BB86, BB92 frames
* Steel version: Enduro 2437
* Ceramic Version: Enduro 2437 Angular contact, Grade5 Ceramic
balls, ABEC5 Assembly
* 68mm version cannot be used for MTB Cranks

* MTB Guides-ISCG05 Good, ST Mounted Good, ISCG03 Not Good
 

TECHNOLOGY:

* Patent Pending Design
* “Collet” style non-drive cup expansion for wiggle-free press
* Non-Drive O-Ring compensates for frame width discrepancies

INSTALL:
http://youtu.be/Eory8iw2BqU
http://youtu.be/5eeT7c7Xcqc