The HEIR Direct Mount Crank offers direct mount crank versatility and performance, in crank lengths that are optimized for young riders.
- Stiff and light cold forged design.
- Compatible with 3-bolt direct mount chain rings.
|HEIR 120mm Direct Mount Crank||523 grams|
|HEIR 140mm Direct Mount Crank||535 grams|
|HEIR 152mm Direct Mount Crank||561 grams|
|Chain Ring - 28t||58 grams|
|Chain Ring - 30t||68 grams|
|Bottom Bracket||138 grams|
|Crank Arm Length||120mm||140mm||152mm|
Determining Chain Ring Offset:
- If your bike has 148mm rear spacing (Boost), choose 3mm chain ring offset
- If your bike has 135mm or 142mm rear spacing, choose 6mm chain ring offset (most kids bikes fall under this category).