Shimano Ultegra Crankset FC-6750 Compact HollowTech II Compatibility and Specs

Shimano Ultegra Crankset FC-6750 Compact 2011

Ultegra has long been recognized as a solid performer and thanks to Shimano's Systems Engineering approach the 6700 series continues to deliver. Lighter, more stylish and advanced by the latest Dura-Ace technologies, new Ultegra is a beautifully balanced group with optimal performance and specifications. Its unprecedented racing DNA takes shifting and braking to another level, with a with a weight reduction of 150g versus 6600 series.

HOLLOWTECH II design : Optimum balance of lightweight and stiffness
New "HOLLOWGLIDE" outer ring : Hollow chainring construction
New gear dimension for great improvements
Improved gear for less chain touch in small/ small combination
HOLLOWGLIDE outer gear : Hollow construction enjoys great rigidity and stability
Compact crankset configuration

HModel Number: FC-6750
Series: ULTEGRA
Crank Construction: HOLLOWTECH II
Cassette Compatibility: 10 speed
Chain Compatibility: Super Narrow HG for 10-speed
Hyperdrive: yes
Dual SIS: yes
Reinforced Spider: yes
Chainring Sets: 50-34T
Bolt Circle Diameter: 110mm
Crank Arm Length: 165/170/172.5/175mm
Crank Arms: Aluminum/Anodized
Chainrings: aluminum/anodized
Bottom Bracket: SM-BB6700 (not included)
Chain Line: 43.5mm　　
BB Shell Width: 68/70mm
Average Weight: 788g 170mm intergrated BB
To lock the crank you'll need Shimano crank-arm/cap tool TL-FC16.
To fit or remove the HollowTech II BB, you'll need Shimano Tool TL-FC32 or alternative is the 2 in 1 Park Tool Bottom Bracket Tool BBT-9C.

Japan Retail Price: (pair) 25.009 yen (clic here to see cross rate)

Compatible with Shimano chains: CN-7900, CN-6700, CN-7901, CN-6701, CN-5701, works also with CN-7801, CN-6600, CN-5600, CN-4601

Compatible with HollowTech II BB; SM-BB7900, SM-BB90, SM-BB91, SM-BB6700, SM-BB5700, SM-BB70, SM-FC7800, SM-FC4500, SM-FC6600, SM-FC6601, SM-FC5600.

Park Tool BBB-2 The Big Blue Book of Bicycle Repair - 2nd Edition

Shimano 105 Crankset FC-5750 Compact HollowTech II Compatibility and Specs

Shimano 105 Crankset FC-5750 Compact

Shimano's proprietary HOLLOWTECH II design provides an optimum balance of light weight and stiffness, while Dual SIS front index shifting has long been the industry benchmark for instantaneous and assertive front shifting performance. Additional improvements include increased spacing between the inner and outer chainrings to reduce chain interference in cross-chain situations.

Cassette Compatibility: 10-speed
Reinforced Spider
Chainring Sets: 50-34T
Bolt Circle Diameter: 110mm
Crank Arm Length: 165, 170, 172.5, 175 mm
Bottom Bracket: SM-BB5700
Chain Line: 43.5mm
BB Shell Width 68/70mm
To lock the crank you'll need Shimano crank-arm/cap tool TL-FC16.
To fit or remove the HollowTech II BB, you'll need Shimano Tool TL-FC32 or alternative is the 2 in 1 Park Tool Bottom Bracket Tool BBT-9C.

For info, Japan Retail price 15.061 yen (see cross rate here)

Compatible with Shimano 10 speed chains: CN-4601, CN-5701, CN-6701 and CN-7901.
Be careful! CN-7900 and CN-6700 DON'T WORKS with FC-5700 / FC-5750 crankset.

Compatible with HollowTech II BB; SM-BB7900, SM-BB90, SM-BB91, SM-BB6700, SM-BB5700, SM-BB70, SM-FC7800, SM-FC4500, SM-FC6600, SM-FC6601, SM-FC5600, SM-FC4600.

Park Tool BBB-2 The Big Blue Book of Bicycle Repair - 2nd Edition