The Tree Lite Spline Drive Sprocket from Tree Bike Co is showcased on a white background.

Highlights

48 spline, 19mm drive
Heat treated chromoly insert
7075 T6 alloy body
25T or 28T

Description

The Tree Lite is a spline drive sprocket, CNC machined from 5/16" thick 7075 T6 aluminium around a heat treated chromoly insert. The insert has a 48 spline, 19mm centre hole, so it locks straight onto a 19mm spline drive spindle.

Teeth are 1/8" wide and it comes in 25T and 28T, both in black. The 25T weighs 62g and the 28T weighs 76g.

Features

48 spline, 19mm drive. The insert splines onto a 19mm spline drive spindle, so check what your cranks run before ordering.
Heat treated chromoly insert. Steel takes the drive load instead of the alloy, which is what stops the splines rounding out.
7075 T6 alloy body. CNC machined from 5/16 inch thick 7075 T6, and that is where the weight saving comes from.
25T or 28T. Two sizes to set your gearing, both cut with 1/8 inch wide teeth.
Light on the cranks. The 25T sits at 62g and the 28T at 76g, so there is very little hanging off the drive side.

Specifications

Spindle: 19mm spline drive, 48 spline
Teeth: 25T or 28T
Chain size: 1/8" wide teeth
Material: 5/16" thick 7075 T6 CNC machined aluminium, heat treated chromoly insert
Weight: 62g (25T), 76g (28T)
Colour: Black