I bought an 04 Felt S25 this fall, it has been suggested that a 25 tooth cog would come in handy given the mountains here where I live. Would I have to worry about anything besides changing out the 23? Chain tension, anything else I didn’t think of?
Thank you.
Do you currently have two or three chainrings up front? what is your current teeth count, for front and rear? Are you 9peed or 10? And just for good measure shimano or campy?
Hello,
You likely will have to change out all of the cogs, not just one (they come as a set). Other than that no problems. Just as a quick test after the change shift into the big / big 53/25 combo and make sure the rear derailleur still has some slack.
Styrrell
Its the stock S25, 53/39 and 12-23, its Ultegra 9 Derailluers, cranks FSA, no idea what the rears cogs are.
The whole set, they aren’ that expensive are they? I guessing it isn’t top of the line since Felt downgraded it from Ultegra??
Thank you guys, this is how we learn.
Its the stock S25, 53/39 and 12-23, its Ultegra 9 Derailluers, cranks FSA, no idea what the rears cogs are.
The whole set, they aren’ that expensive are they? I guessing it isn’t top of the line since Felt downgraded it from Ultegra??
Thank you guys, this is how we learn.
I think cogs are part of the cassette. you would need a cassette .I bought a DA 9 speed cassette last year for $60. They may be more now.
Typically at least the three biggest cogs are connected. You may be able to replace just those depending on sizes the other cogs are. Having said that, you may find the cost pretty close to just picking up a new cassette. If cost an issue, there are always some floating around on e-bay. With lots of folks moving to 10 speed, I have seen quite a few like new condition cassettes out there. Personally I would stick with no lower than Ultegra level but I think SRAM makes a 12-26 as well that may be good choice.
You can probably offset the cost some by selling your existing cogset too. Or put it on a wheel that you only use on your trainer during the winter.
Should I expect to change the chain as well?
I have seen the SRAM S9 12-26 on ebay for about $33. Would I need a SRAM chain?
Is goign from a 23 to a 26 going to make that big of a difference?
23 to 26 is a big change…
no you don’t need a SRAM chain but you wil need a new chain
To do the whole thing you are going to need some specialized tools, thus may be easier to take it to the shop and have them do it.
Thanks HH, thats about as thorough as I could have asked for.