Could you throw a Shimano XT rear derailer on there to handle the big cogs in back?
On Sat, Nov 14, 2009 at 8:02 PM, Donald Compton <[email protected]>wrote: > i have a rival setup on my hampsten with a 50/34 crankset. i tried my > friend's ird 12/30 cassette and it did not work very well. the sram road > groups are not designed for low gears. > don c. > > --- On *Sat, 11/14/09, cyclotourist <[email protected]>* wrote: > > > From: cyclotourist <[email protected]> > Subject: [RBW] Re: Drivetrain question... AHH with 9 vs 10 speeds... > To: [email protected] > Date: Saturday, November 14, 2009, 7:53 PM > > Is there enough chain wrap with the Rival rear derailer to run the XX 36T > cassette? There's also an 11-32T XX cassette out there that you could try. > Presuming you don't cross-chain that could work??? You could also go down > one size to a 33T small ring, which isn't a lot of change (3%), but might be > just the difference you need??? > http://sheldonbrown.com/harris/chainrings/110.html > > > On Sat, Nov 14, 2009 at 7:32 PM, Jim Thill - Hiawatha Cyclery < > [email protected] <http://mc/[email protected]>> wrote: > >> >> Yep, ditch the Rival shifters, cassette, rear derailleur, 10s chain. >> Sounds like you have an adequate 9s cassette already. With a Deore-ish >> rear derailleur, Shimano 9s bar-ends, and a 9s chain, you may keep the >> double crank and be satisfied with a 34/34 low gear and spend only >> $150 or so to get there (assuming you do your own wrenching). If you >> still want to go lower, then you can spring for the Sugino XD or >> whatever triple, appropriate bb, (and MAYBE a triple fder), but you >> will already be prepared with your shifters, etc. >> >> The 10s chain will work on a 9s cassette in friction, but I've never >> been satisfied with friction shifting and 9s because the shifter >> ratchets start to act like faux-indexing, which is bad. >> >> On Nov 14, 8:37 pm, Rene Sterental >> <[email protected]<http://mc/[email protected]>> >> wrote: >> > Thank you all for the great responses and ideas. Here are some more >> > questions based on those... >> > - I had not considered the alternative of going to a triple crankset; >> > initially Mark suggested to keep the double for the lower Q factor, but >> I >> > don't know how much of an issue that would really be for me. I never >> have >> > any trouble with my triple crankset on my mountain bike. However, this >> > option brings up the following issues: >> > * Need to change the bar-end shifters, the Sram won't be compatible with >> the >> > triple crankset - not a big deal... >> > * Will the 10 speed chain work smoothly with the triple crankset that is >> > designed for 9 speed or fewer chains? 10 speed chains are narrower - >> > conversely, will a 9 speed chain work on the 10 speed cogset? I don't >> think >> > so, it might get stuck as the space between the cogs is narrower as >> well... >> > >> > That would mean, if I got it all straight, that probably the best >> solution >> > would be to go with a triple crankset and a regular Shimano 9 speed >> cassette >> > and other standard parts. Sell the Shimano Rival drivetrain to a roadie >> > looking to upgrade to 10 speeds (I have the integrated brake/shifter >> levers >> > as well) and gain the flexibility of easily customizing a Shimano 9 >> speed >> > drivetrain. >> > >> > Did I get that right? The kind of hills I want to climb are in the San >> > Francisco Bay area... Highway 84 to Skyline, Old La Honda, Mount Diablo, >> > etc. Some of them I could climb now, but on the brink of blowing out and >> > that is no fun at all... :-) >> > >> > I'm going back to the calculator and craig's list... :-) >> > >> > René >> > >> > On Sat, Nov 14, 2009 at 6:17 PM, Richard >> > <[email protected]<http://mc/[email protected]>> >> wrote: >> > >> > > Sorry about thinking you can get a Shimano 10-speed cassette in the >> > > range you want. However, Interloc Racing Design (IRD) does make a 10- >> > > speed Shimano compatible cassette, although shifting might not be as >> > > precise as with a Shimano cassette. >> > >> > > On Nov 14, 8:06 pm, Richard >> > > <[email protected]<http://mc/[email protected]>> >> wrote: >> > > > I'm using a Shimano 13/25 10-speed cassette with my Rival shifters, >> > > > front and rear derailleurs, compact crank and chain. From what I've >> > > > read about the SRAM XX rear derailleur, it appears to be compatible >> > > > with other 10-speed SRAM road groups and should also work fine with >> > > > any Shimano 10-speed cassette. If such is the case, you should be >> > > > able to get a new SRAM XX rear derailleur and a new Shimano 10-speed >> > > > cassette at a cost that also should come in at less than $500.00. >> > >> > > > I apologize if I'm not correctly understanding your objective. >> > >> > > > Good luck. >> > >> > > > Richard >> > >> > > > On Nov 14, 6:51 pm, Rene Sterental >> > > > <[email protected]<http://mc/[email protected]>> >> wrote: >> > >> > > > > Even though this may be a polarizing subject, I'd like to get >> solid >> > > > > arguments to answer this question and support a decision: >> > >> > > > > When I bought my AHH frame, I built it up with the Sram Rival 10 >> speed >> > > > > drivetrain I had on my Gunnar. I just bought the Sram aluminum >> bar-end >> > > > > shifters and used the other parts: >> > > > > - Compact crankset 34/50 >> > > > > - 11/28 10 speed cassette >> > > > > - Sram Rival front & rear derailers. >> > >> > > > > At the time, I was told that to make climbs easier, I could go >> with the >> > > > > newer 11-36 Sram XX rear cassette (I'm 264 lbs now). Researching >> > > prices, >> > > > > however, shows that I'd also need to replace the rear derailer and >> the >> > > total >> > > > > sum of the upgrade would be $593.00, which seems pretty steep. I >> then >> > > > > proceeded to research the alternatives, and came out with a very >> nice >> > > change >> > > > > to a Sugino/Shimano 9 speed drivetrain change that includes the >> new >> > > Shimano >> > > > > 12-36 9 speed cassette and comes up to $625. If instead I use an >> spare >> > > 11-34 >> > > > > rear cassette I have, the total comes to around $575.00. >> > >> > > > > Factor in the following elements: >> > > > > - Cost of replacing the rear cassette, Sram XX @ $328 vs. Shimano >> @ $60 >> > > or >> > > > > so... >> > > > > - Durability of the rear cassette, Sram XX - unknown and developed >> for >> > > > > racing vs. Shimano - well known and multiple options available. >> > > > > - I'm not worrying about weight, since I'm the one who has to lose >> > > it... >> > >> > > > > Does it make sense to switch to a complete 9 speed drivetrain and >> sell >> > > the >> > > > > Sram Rival drivetrain, which would help lower the cost of the >> switch? I >> > > seem >> > > > > to think so, but wanted to get your opinions and feedback. >> > >> > > > > Thank you all! >> > >> > > > > René >> > > > > [email protected] Hide quoted text - >> > >> > > > - Show quoted text - >> >> > > > -- > Cheers, > David > Redlands, CA > > "Bicycling is a big part of the future. It has to be. There is something > wrong with a society that drives a car to workout in a gym." ~Bill Nye, > scientist guy > > > > > -- Cheers, David Redlands, CA "Bicycling is a big part of the future. It has to be. There is something wrong with a society that drives a car to workout in a gym." ~Bill Nye, scientist guy --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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