Quote:
|
Originally Posted by Dzdconfusd
Just a little more info on titanium sprockets.
Shimano Dura-Ace ten speed cassettes have 4 Ti sprockets, the four largest sizes vary depending on the cassette. They cost ~$150 (for 11-23) to ~$170 (12-27). This is cost prohibitive very quickly.   |
You should also note, that these bicycle sprockets are designed to take torque in one direction only. Ex, you don't ride a bike back wards. If you look closely, the tooth profile is optimized for load in the pedaling direction. It is much more obvious on the front chain rings.
These sprockets would also be very hard to work with. All the major bicycle component manufactures have there rear sprockets fitted on a non-standard spline, that would be VERY difficult to machine yourself. Theres also not very much material left over do drill your own mounting holes either.
The front chain-rings would be much more easily adapted. Most road chain rings fit on a standard 130mm bolt circle, and the higher quality ones are very light. Mountain bike chain rings are smaller in size, and also have a smaller bolt diameter.(which i don't know off the top of my head) On the other hand you still limited to bicycle chain, which although is 1/2", is much narrower than standard ANSI chain. You also need special connecting pins, to change the chain length, and a different chain tool. Also, you cannot get half-links for it.
In summary, it is my opinion that, although very light, high-performance bicycle sprockets are more hassle than their worth. You can get standard aluminum sprockets, and just lighten them yourselves, and they will be just as light as bicycle sprockets, and a whole lot easier to work with.