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Cyclocross and Gravelbiking (Recreational) This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

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Old 08-03-14, 08:40 AM   #1
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Shimano 105 group: 2003 9-speed vs. 2006 10-speed

I've had my Fuji Cross since new in spring 2003. It came with 9-speed 105 drivetrain. Current crankset is FSA Gossamer with 46/34 rings. Several years back I switched to a mountain bike rear derailleur so I could run a 11-28 or 11-32 cassette. I also have a no-longer-used 2006 K2 road bike that has full 105 plus Ultegra rear derailleur. This handles up to a 28 big cog.

The bike sees a mix of commuting (on 700x28 tires), gravel/dirt road & trail rides (did 130 miles on a single June day on the C&O Canal Towpath), some just for the fun of it single-track in the woods, and a couple of CX races. I've had a really good spring & summer on the road bike and hope to take advantage of those miles by training for and racing in 5 to 7 CX races this fall.

The question I am wondering is whether it would be worth the effort to move the 10-speed group to the Fuji. I might miss the 32 cog on some of the single-track stuff but not anyplace else. The 10-speed group shifts better as currently set up. I can do all the work myself so the only extra costs might be cables & bar tape (probably could use new cables for the Fuji regardless).


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Old 08-03-14, 10:32 AM   #2
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I have a number of divetrains, including 9 speed and 10 speed. I would not spend the time or money changing a fully functional divetrain. Once the bike needless an overhaul, you might make the change-over.
When I ride my bike I feel free and happy and strong. I'm liberated from the usual nonsense of day to day life. Solid, dependable, silent, my bike is my horse, my fighter jet, my island, my friend. Together we will conquer that hill and thereafter the world.
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Old 08-03-14, 11:51 AM   #3
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You should have a specific gear ratio you really miss and the only way to get it is whole drivetrain surgery ..

I suspect a tooth or 2 more or less substituting a different chain ring, or a same speeds count cassette, but different cog tooth counts will do .

the economy always welcomes the spending of money..
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