Hi vspa, SRAM cassettes also work with Shimano RD's, but not sure about 10 years time. 8 speed has been supported for more than 20 years. Perhaps continue with what you have, but a new cassette, and when the electric groups have finally matured get one of those. They will be at least 10spd and probably 11spd or more.Originally Posted by vspa .
before i keep buying cassettes and accessories for Ultegra 9 speed, how long does Shimano plans on supporting them ? in 10 years time im going to find replacement STI levers for example ?
I don't know what the lead time is for Shimano's R&D, but they probably have begun working on several ideas which may not come to the market for another 10+ years -- some ideas may die on the vine & others may be resurrections of ideas which should have been abandoned ([COLOR= #808080]e.g., pnuematic shifting could be resurrected if someone from that 'team' ascends to Chief Engineer status![/COLOR]).Originally Posted by tafi .
As for 10 years time, you would need a crystal ball. Not even Shimano know what will happen in 10 years. Di2 was only a twinkle in some engineer's eye that long ago. Being a huge company with big engineering departments and manufacuring facilities mean they can act on decisions in a much much shorter time frame.
good idea ! upgrade just one of the bikes and use the material as backup for the other one, thank youdavereo said:Another option you have is to upgrade one bike to 105 10 speed. IMO 105 10 speed is just as good if not better than ultegra 9 speed. Then you can use the parts removed from the bike to keep your 2nd bike going. http://www.ebay.com/itm/Shimano-105-5700-5-Piece-Road-Group-New-/120850556909?pt=Cycling_Parts_Accessories&hash=item1c234127ed
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