
Originally Posted by
ny biker
This is a very useful thread. My bike currently has SRAM Rival components, 50/34 compact double with an 11-28, 10 speed cassette. Last fall I found myself walking up a particularly steep climb (it was that or fall over with an asthma attack) as I watched my friend effortlessly spin up to the top with her mountain-bike gearing. That was when I decided my next cassette would be better for climbing. Given the rides I'm planning this year, I think it makes sense to keep what I have until it wears out. When that happens I will be wondering the same thing -- what cogs do I want on the new cassette. So this is giving me an idea of what to look for.
Thanks!
<bump> Just picked up my bike from the LBS. They had done a rear derailleur adjustment recently to address some shifting problems, but I took it back because it was still not shifting right. (Also there were possible free hub issues, but they did the required maintenance on that and it appears ok.) They told me that several of the rear cogs are looking worn. So I told them that I'd been thinking about getting better climbing gears when it came time to replace the current cassette. I also wanted to look into a smaller large chain ring; I rarely use the one I have now because it tends to cause knee pain. And I want to replace as few things as possible, which means staying with SRAM components.
They recommended that I get a SRAM 11/32 10-speed cassette for easier climbing (contrasted with the 11/28 that I have now). This would necessitate a new rear derailleur, specifically a SRAM WiFli RD.
As near as I can tell from poking around online, the new cassette would have the following cogs: 11-12-13-15-17-19-22-25-28-32. The old one has 11-12-13-14-15-17-19-22-25-28. So they're the same except the new cassette adds the 32 cog in place of the 14. The current cassette is a SRAM P-1070, and unless I'm missing something on the SRAM website, I think I'd be replacing it with another P-1070.
I am a bit confused regarding the new rear derailleur. At the LBS we talked about a "SRAM Climber's Kit in a Box," which includes the 11/32 cassette, WiFli rear derailleur and a chain. However I think this comes with a Force 22 WiFli derailleur, which is an 11-speed RD. I currently have a 10-speed drive train. I know that my rear wheel could handle 11-speed components, but if I'm understanding the SRAM website correctly the current shifters would have to be replaced if I went to 11 speeds. So I will need to talk to them further to make sure I'm getting the right derailleur to work with the new cassette as well as all the old components. Outside of 11 vs 10 speed issues, I have no complaints with the quality of the Rival components that came on my bike but am open to upgrading to Force as long as I'm replacing the derailleur.
So, I have something of a plan for the cassette and rear derailleur but still a few details to work out.
As for also getting a new front chain ring, I think I will wait on that, for budget purposes. We discussed replacing the current 54 chain ring with a 44, but they recommended also getting a front derailleur with a clutch (whatever that is) to prevent problems with the chain falling off. So we'll wait on that and spend that money another day.
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles