Morphed from the original Tree sprocket. Tree have enlarged the holes and got rid of unneeded material. This gives it a very impressive strength to weight ratio. It is made of 5/16” thick 7075 T6 aluminium.
Tree has designed the spokes of this sprocket to be tapered and I-beam shaped. This makes the best use of the material used to form the bridgework of the sprocket. Every single detail has been thoroughly thought out.