Billet Crank Sprockets from Boundary follows the same heritage as our oil pump gears, manufactured 100% in-house with US-sourced materials. These sprockets start with Chromoly steel that is ten times stronger than the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear.
- All sprockets heat treated to maximum hardness while maintaining toughness
- Precision CNC machined and broached for snug accurate fit
- Dimensions are checked after machining and after heat treatment for a guaranteed fit.
- 80% more cross-section versus OEM at the keyway
- Weighs 30% more than OEM at 170 grams vs 130 grams giving it the highest-strength sprocket on the market.
- High finish reduces friction and chain vibration
- New tooth geometry strengthens teeth and keyway
Part Number CM-SP-11-GRIP FITS:
- ALL FORD COYOTE 2011-2014
Part Number CM-SP-15-GRIP FITS:
- ALL FORD COYOTE 2015-UP
The grip surface is not available in LARGE RADIUS (LR)
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