Madera Helm Spline-Drive Sprocket

The Madera Helm Spline-Drive Sprocket at J&R Bicycles 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 needed, and it is made in the USA!

FEATURES

• American Made
• 7075 Aluminum
• No sprocket bolt needed or usable. Spline adapter only.
• Hardened CrMo steel insert matches up to the 48 spline spindle (included)
• Available for 19mm and 22mm spindles
• Available 25t and 28t
• Weight: 81g/285 oz (25t)

IMAGE NOTE: The image shown is the 25T sprocket. You will be getting the product that you order when purchase.