SRAM Red Chainset BB30 172.5mm 50-34t Bearings Not Inc

Fatigue, flex and friction, enemies all, and they’ll rob you of speed and performance over both the short and long hauls. The SRAM Red crankset does its part to keep them from affecting your ride. The integrated carbon spider’s design is lightweight and extremely stiff, allowing for instant, efficient power transfer.

Speed-sapping friction™ The Red Crankset virtually eliminates it with new hybrid ceramic bearings housed within the GXP BB’s case. Ceramic bearings ride in a stainless steel race, are more efficient, use a lighter seal, and are lighter, stiffer and longer-lasting than normal bearings.

Matched to the new crankset is an equally revolutionary pair of chainrings. Optimized exclusively for Red components, they’re stiffer than anything ever before, for greater efficiency as well as incredible power-transfer ability.

The end result: a crank that’s evolutionary in its design and revolutionary in its ability to put you at the front of the pack no matter which size you choose. • Integrated carbon-spider construction is light and stiff for greater power transfer with less effort. • New Red PowerGlide™ chainrings are designed to professional-grade shift, stiffness and durability standards.

Specifications:

• Arm Material - Carbon

• Chainring Material - AL 7075-T6 Aluminium/Alloy chainring bolts

• Weight - 760g with BB

• Arm Lengths - 170mm, 172.5 and 175mm

• Chainring Ratios - 34/50 and 39/53

• Compatibility - GXP Team BB with BlackBox Ceramic bearings

New larger diameter bottom bracket delivers weight saving stiffness. The SRAM Red group is now the worlds first sub 1900g. A new international standard option to the bottom bracket market is the BB30, which delivers several advantages over the current 24mm’s. From improved stiffness to a narrower profile, numerous leading manufactures have adopted this new option. SRAM will offer the BB30 in its 2009 product line as part of the Red group, providing both crank and bottom bracket availability. BB30 Facts:

• Narrower profile (low Q)

• Lighter than standard 24’s

• Improved stiffness

• Larger bearings

• Longer bearing life