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Upgrading 7 Speed Shimano 105 to 9 Speed Ultegra
I own an early 1990s road bike with Shimano 105 (7 speed) components.
I'd like to upgrade some of the components (lighter wheels, 9 speeds). What components will I need to fully upgrade the bike to 9 speed Ultegra specs? Is it even possible to upgrade a 7 speed to 9 speed specs? Thanks in advance-- |
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#2
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Upgrading 7 Speed Shimano 105 to 9 Speed Ultegra
chicago- What components will I need to fully upgrade the bike to 9 speed
Ultegra specs? Is it even possible to upgrade a 7 speed to 9 speed specs? BRBR If the frameset is stell, you may have to have the rear end spaced to 130mm, Then a new rear hub that can accpet 9s cogs, right shifter and rear der...rear der cuz I recommend Campagnolo Centaur or Veloce, Rear hub, shifter set, rear der...10s as well. I would stay away from ultegra,. it is going to go thru a major change in 2005(late 2004 actually) and a lot of ultegra is going to become obsolete, then scarce..Ultegra is pretty scarce right now. Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302 (303)440-3535 http://www.vecchios.com "Ruote convenzionali costruite eccezionalmente bene" |
#3
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Upgrading 7 Speed Shimano 105 to 9 Speed Ultegra
Joe wrote:
I own an early 1990s road bike with Shimano 105 (7 speed) components. I'd like to upgrade some of the components (lighter wheels, 9 speeds). What components will I need to fully upgrade the bike to 9 speed Ultegra specs? Is it even possible to upgrade a 7 speed to 9 speed specs? Easy enough if the frame is steel. Get the rear end stretched from 126mm to 130mm by a framebuilder or do it yourself (the latter won't leave the dropouts perfectly vertical, but you'd be pushed to notice). You'll need a new rear wheel build with a 9 speed hub and a 9 speed cassette, and new shifters. The cheapest are Dura-Ace downtube levers, which are really rather nice if you're used to shifting this way. Or you can go the STI route like all the boy racers. I changed the crankset and BB but you shouldn't really need to. The old front mech is just fine. I also changed the rear mech because the old one was getting on in years, but the 7 speed mech should be OK; the sideways movement for a given amount of cable pull is the same for all recent Shimano mechs. |
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Upgrading 7 Speed Shimano 105 to 9 Speed Ultegra
On Mon, 17 May 2004 18:19:50 +0100, Zog The Undeniable
wrote: You'll need a new rear wheel build with a 9 speed hub and a 9 speed cassette, and new shifters. You only need a 8/9sp hub body. If you space your hub for 128 mm, you won't need a new axel or to widen the frame. If you'd like, you can keep your 7sp hub body and put 8 of 9 cogs from a 9sp cassette on. You'll need a 9sp chain. I'd recommend barends before downtube shifters. |
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