Company: Madera BMX
Sprocket: Helm Spline Drive
MSRP: $59.95
Size/Teeth Options: 25, 28t
Material: 7075 Aluminum.
Thickness: 6mm or 1/4″
Number Of Sprocket Bolt Holes: 0
Sprocket Adapter(s) Included: Pressed in steel spline drive insert.
Colors: Black, Grafitti Font, Snow.
Weight: 2.8oz / 78g (25t)
What were your goals when designing this product?
In the early days of Profile crank production (80’ or 81’), we made a spline drive spider. Considering sprockets were much thinner at that point, the splines did not hold up to the torque. The idea behind the newer versions (20 years later) is to create a thicker and more aesthetically intricate design.
Why are your sprockets better than others, or what makes them different from others on the market?
We make the Spline Drive Sprocket, like the rest of our products, in the USA. That and our intricate machine work and finishing (anodizing) is what sets our product apart.
-Matt Coplon
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