SHIMANO's Tiagra series FC-4703 is a 10-speed crankset with three sizes of chainrings for road bikes, touring, and commuter bikes.
Featuring the asymmetric 4-arm spider (110/74 mm volt circle) first used in the Dura Ace, Ultegra and 105 series 11-speed cranks, it's a great design that's lightweight yet stiff. In addition, the integrated crank arm and bottom bracket (2-piece design) also contributes to improved stability.
The well-balanced FC-4703 crank provides a stable, smooth, low-resistance gear change for a great fan riding experience.
Compatibility: SHIMANO 3x10 speed
Chainring mount: 110 / 74mm pitch, 4-arm asymmetric
Crank arm material: Aluminum
Chainring material: Aluminum, Composite (GFRP) / Aluminum / Steel
Axle material: steel
Chain ring size: 50-39-30
Crank arm length: 170.0mm, 172.5mm, 175.0mm
Chain line: 45mm
Q factor: 158.8mm
Axle diameter: 24mm
Compatible BSA shell width: 68mm
Recommended Bottom Bracket: BB-RS500 or BB-RS500-PB Pressfit Hollowtech II
Corresponding chain: HG-X10 speed (example: CN-HG54)