4130 HT V2B Bolt Drive Sprocket

Designed to be a reliable, thin, and affordable high-quality sprocket that's ready to shred anytime. SPECS - Beefed up version of our V2 4130 Sprocket - 4.5mm thick 4130 Heatreated Chromoly Steel - 22mm hole w/ steel adapter for 3/4"(19mm) spindles - 3/32" wide teeth can be used with either 3/32” or 1/8” chains - Available in href="http://store.treebicycleco.com/product/4130-ht-v2-spline-drive-sprocket">Spline Drive SIZES - 25T or 28T COLORS - Black or Raw WEIGHT - 25t: 3.3oz - 28t: 4.1oz INFO We chose to use 4130 chromoly steel because it is a less expensive material when compared to 7075 aluminum. Since it’s such a stronger material it’s possible to create a minimalist look. The triangle shaped pockets are laser cut to remove material that is not needed leaving only the material necessary to form a high strength to weight structure. Then the centerhole, bolt hole location, and teeth are CNC machined for concentricy. And finally the sprocket is heatreated. The 4130 HT V2 sprocket