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The Madera Helm Spline-Drive Sprocket is a classic helm sprocket built to be super tough with high-quality materials and engineering. Constructed from durable 7075 aluminum with a hardened chromoly steel insert, this sprocket is built to last without adding much weight. The insert matches up with the 48-spline spindle which is included. No sprocket bolt...
The Madera Helm Spline-Drive Sprocket is a classic helm sprocket built to be super tough with high-quality materials and engineering. Constructed from durable 7075 aluminum with a hardened chromoly steel insert, this sprocket is built to last without adding much weight. The insert matches up with the 48-spline spindle which is included. No sprocket bolt...
The Madera Helm Spline-Drive Sprocket is a classic helm sprocket built to be super tough with high-quality materials and engineering. Constructed from durable 7075 aluminum with a hardened chromoly steel insert, this sprocket is built to last without adding much weight. The insert matches up with the 48-spline spindle which is included. No sprocket bolt...
The Madera Signet Universal Guard Sprocket is machined from 6061 aluminum, made in the USA by Profile Racing. The Signet Guard is a unique “universal” sprocket. It uses an adapter insert to make the sprocket compatible with spline drive or bolt on style cranks. The adapter is available for 19mm, 22mm, & 24mm axle sizes. One sprocket fits all! A...
The Madera Signet Universal Guard Sprocket is machined from 6061 aluminum, made in the USA by Profile Racing. The Signet Guard is a unique “universal” sprocket. It uses an adapter insert to make the sprocket compatible with spline drive or bolt on style cranks. The adapter is available for 19mm, 22mm, & 24mm axle sizes. One sprocket fits all! A...