Shimano Dura-Ace Track FC-7710 Octalink Crank

The Dura-Ace Track FC-7710 Crank by Shimano - A tyre width ahead on the track

The Shimano Dura-Ace Track FC-7710 crank is designed for track cycling. It has a track bike-typical bolt circle diameter of 144 mm (5-arm) and can only be equipped with individual chainrings, which must be ordered separately. It is an Octalink crank with 8-speed teeth, which provides more stiffness compared to square systems. To save weight, the aluminium crank arms were hollow forged. With the FC-7710, you gain those fractions of a second that all too often make the difference between victory and defeat in the velodrome.

Specifications:

Application:

Track

Compatibility:

1x

Chainring Mount:

144 mm bolt circle diameter, 5-arm

Technical Information:

Series:

Dura-Ace 7700

Crank Arm Material:

Aluminium

Crank Arm Length:

165.0 mm, 167.5 mm, 170.0 mm, 172.5 mm, 175.0 mm

Chainline:

42.5 mm

Q-Factor:

136.3 mm

Compatible BSA Shell Width:

68 mm

Recommended Bottom Bracket:

BB-7710 or BB-7700 Octalink 109.5 mm axle (not included)

Compatibility:

• compatible with 1/2" x1/8" and 1/2" x3/32" chains
• chainrings with 45 to 55 teeth (1/2" x1/8" , 1/2" x3/32" ) sold separately

Features:

• pedal thread BC 9/16" x 20 tpi
• hollow crank arms (Hollowtech)
• anodised crank arms
• stainless steel chainring bolts

Technology:

Octalink
In Shimano's Octalink system, the bottom bracket and crank are connected by an 8-tooth contact surface. This provides greater rigidity and greater load capacity, especially compared to conventional square systems.

Manufacturer Numbers:

165.0 mm:

I-FC7710A

167.5 mm:

I-FC7710B

170.0 mm:

I-FC7710C

172.5 mm:

I-FC7710D

175.0 mm:

I-FC7710E

Contents:

• 1 x Shimano Dura-Ace FC-7710 Crank
• 2 x crank bolts
• 5 x chainring bolts
• 5 x chainring bolt nuts