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M30 Bottom Bracket Conversion For BB86/BB92

Designed to be a proper BB for installing M30 spindle based cranks in either BB30, PF30, or Specializeds OSBB frames. Our patent pending design keeps the cartridge bearings outboard of the frame right on Shimano spec for greater rigidity and free of
RIP - This product is no longer available on our network. It was last seen on 26.10.2016

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Availability: In Stock
£31.49

Product Description

Designed to be a proper BB for installing M30 spindle based cranks in either BB30, PF30, or Specializeds OSBB frames. Our patent pending design keeps the cartridge bearings outboard of the frame right on Shimano spec for greater rigidity & 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 & 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. SPECIFICATIONS For M30 Spindle based cranks only. Forged & machined heat-treated 7075 T6 AL Cups Steel cartridge bearings 68mm Road version / 73mm MTB Version For BB86/92, BB30, PF30, & Specialized Road OSBB Aluminium frames Not for BBRight or BB386EVO frames 68mm cannot be used for MTB Cranks MTB Guides -ISCG05 & ST Mounted Good, ISCG03 Not Good BB86/92 frames need to be check with the frame gauge before fitting TECHNOLOGY & NOTES Patent Pending Design Collet style non-drive cup expansion for wiggle-free press Non-Drive O-Ring compensates for frame width discrepancies VIP NOTES MTB Guides-ISCG05 Good, ST Mounted Good, ISCG03 Not Good

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Jargon Buster

Aluminium - Corrosion resistant lightweight metal
Shimano - A high end bike part manufacturer
Steel - An alloy made predominately of Iron combined with <2% carbon
Heat - A term used to define thermal energy
Set - a group of items usually related to one another. Some objects cannot function without the complete set of items.
Shell - A hard external structure or surface.
Tight - The opposite to loose
Road - a manmade lane or a path that is used to speed up travel.
Precise - A measurement on the accuracy of something
Patent - A legal right towards owning and having the sole use of a name.
Width - The measurement of something from one side to the other.
Bearings - A direction or a way someone moves around.
Design - A drawing or styles that shows the look and functionality of something before its made.

Supplier Information

Westbrook Cycles
Page Updated: 2015-05-05 04:05:03

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