TREE BICYCLE CO.

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Reason for Making It

I wanted an extra light sprocket that did not have to be babied. Capable of light street and skatepark tricks.

Why it was made this way

This design is actually a morph from the original Tree sprocket. We enlarged the holes and got rid of unneeded material, which gives it a very impressive strength to weight ratio. It is made of 5/16" thick 7075 t6 aluminum.

Strength: I designed this sprocket from the idea of the structure of the bike wheel has a hub, spokes, and a rim. I used our 3D drawing program where we can actually test the sprocket strength on the computer. This allows us to make a very high tech sprocket with a tremendously high strength to weight ratio. We have 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. Many all nighters have put into designing this thing.

Teeth: These teeth have been modeled after the tooth shape used for industrial machinery. In industrial situations this engineered tooth shape keeps machinery running quietly and smoothly at very high RPM's. For BMX it makes it the smoothest running sprocket. Also the teeth are made tall to prevent the chain from derailing.

Sizes

18T, 20T, 22T - (made for flatland with 3/32" teeth)

22T, 23T, 24T, 25T, 26T, 27T, 28T, 29T, 30T, 33T, 36T, 37T, 39T, 41T, and 44T - (with 1/8" teeth)