Classic 50.4 BCD cranks, like the TA, Stronglight 49D, and others, are still sought after by randonneurs and cyclo-tourists. These cranks offer tremendous versatility since chain rings from 28t to 62t fit. They are also light and have narrow Q-factors, or tread.
While the Grand Cru 50.4 Crankset looks like a classic, we have made several important improvements. They are cold forged from 7075 aluminum alloy. The rings are thicker so they don't flex as on classic cranks. The outer rings have modern shifting aids such as ramps and pins, so shifting performance is much improved. All stainless hardware with allen head nuts/bolts. Includes aluminum machined dust caps and BB bolts. Dust caps function as self extracting crank hardware.
- Teeth: 46/30
- BCD: 50.4mm
- Q Factor: 144mm
- Chainline: 43.5mm
- Speeds: 5-11 compatible
- Taper: JIS square taper
- Suggested Bottom Bracket Spindle Length: 118mm
- Pedal Threading: 9/16"
- Weight: 654 gr (for 170 mm cranks with hardware)