fixed gear bottom bracket Phil Wood Outboard Bottom Bracket

fixed gear bottom bracket Phil Wood Outboard Bottom BracketPhil Wood manufactures their OBB cups, center sleeves and spacers for from US produced 7075 aluminum and stainless steel, machined in house at their facility in San Jose CA. This version includes a genuine Phil Wood GXP adapter pressed into the non drive side bearing, making it perfectly compatible with your Sram Omnium, Sram S300 or Alpina Track crankset. Aluminum cups are available in 8 colors, stainless steel is polished silver. Phil OBB cups are

Phil Wood manufactures their OBB cups, center sleeves and spacers for from US-produced 7075 aluminum and stainless steel, machined in-house at their facility in San Jose CA.

This version includes a genuine Phil Wood GXP adapter pressed into the non-drive side bearing, making it perfectly compatible with your Sram Omnium, Sram S300 or Alpina Track crankset.

Aluminum cups are available in 8 colors, stainless steel is polished silver.

ⓘ Phil OBB cups are slightly thinner than stock Sram GXP bottom bracket cups, so it is important that you use one of the included 2.5mm spacers on the drive side for proper drive side clearance and left crank arm/axle engagement. Never use more than one of these spacers for GXP applications.

Specifications

• 68/73mm English-threaded (BSA)

• compatible with Sram GXP cranksets

• high-polish stainless steel or anodized aluminum cups

• CNC-machined aluminum center sleeve w/ o-ring seals

• sealed cartridge bearings

• use Phil Wood OBB Tool or Park Tool BBT-19.2 for installation & removal

• weight: 250g (steel cups)/160g (aluminum cups)

Installation instructions

Phil Wood OBB installation (pdf)