If I go from a 12-25 to a 12-28 will it work with a sram rival short cage derailleur ?
803923
It depends on the size chain rings that you have. Rear derailleurs are designed to be able to hand the maximum difference in the number of teeth on your entire drive train. Total Difference = (Teeth on Big front chain ring + teeth on largest cog (ex: 28 above)) - (Teeth on small front chain ring + teeth on smallest rear cog (11 in your question). Then you need to look up the capacity for your specific derailleur. Make sure to match the right derailleur size and model year as they change. Good luck.
2182264
I am using it with 2013 Sram 10 speed components and it works just fine. Never a problem .
983856
I believe it will. All Shimano (and Sram) hubs and cassettes use the same groove pattern.
1753347
Yes, it will work fine assuming you have the correct shifters (sram 1:1/x.# whatever). If your previous mech was a x.5 you shouldn't have a problem. Having single, double or triple up front doesn't make a difference.
2062765
No, you must pair it with a derailleur that has a 1:1 ratio. They worked very well with the matching SRAM derailleur.
1274476
Depends on the size of the front chain ring. You can run medium with 10 speed with 32 for sure, meybe even 34/36 front. To be absolutely sure google how to size rear derailleur cage and you find the formula for each cage size-one of the MTB forums had it.
1303831
This works fine with a wide range of 7 speed gear sets if you had an indexed shifter like gripshift it will probably work I've used it on Shimano and many cheap brand Chinese ones and always worked flawlessly
30038
11-36, 12-36 gearing is typically for mountain or cross bikes. If this is going on a road bike, most likely your derailleur is too short and will not work with the the larger gears. Most road cassettes only go up to 28t (and that is probably the max a "short-cage" derailleur can take). If you want easier gearing, go with 12-28t, compact chainrings in the front, or get a med-cage derailleur to handle the 12-36.
1309072
Yes. The mount on the derailer itself is 35.0mm. Shims are included for 28.6mm and 31.8mm frames.
763532
yes, just have the old 7 speed, i got this one for this wheel Shimano Tourney 7Spd 14-28T Freewheeland it should work perfectly as it has for me
1282564
As long as you have a Shimano deraileur it should work. Make sure you get the 7-speed set for a 21-speed (3 front/7 rear)
610168
I recommend doing some reading. Short answer is they allow for different big big and small small gear combinations. Look here for a good explanation. http://forums.mtbr.com/drivetrain-shifters-derailleurs-cranks/when-use-long-cage-vs-short-cage-derailleur-205890.html Figure out what gears you plan on running up front and in back and then choose the appropriate cage per manufacture recommendation. I hope this helps
2062767
These shifters will only work with the corresponding SRAM Rear Derailleur. This is because the shifters are "Indexed" which basically means the shift ratios or the distance the shifters move the rear derailleur are fixed to match the ratio that matches the specific SRAM rear derailleur.
441477
It certainly looks as though it would. Both are 7-speed freewheels of the same overall range. There might be some minor differences in the between cogs, but nothing that should prevent it from working well.
1490216
Not enough information to tell you if this derailleur will work for you. Need an idea of the cable routing and if cabless pull from the top or bottom of the derailleur. Sorry I can't help you resolve this question. Nick Carper
1259599
I recomend to buy Shimano derailleur pulley. Sram is similar and may be they work but is not for sure.
1441273
It should adjust to fit BUT a lot depends upon your shifters, cables etc.... If you have thumb shifters I think it will work. I have seen a 7 speed Shimano click shifter work but of course it had to be adjusted to fit...I use new 6 speed twist shifters and cables when I work on a bike. For this job the time the old derailleurs will work most of the time.. It's not a big difference going from 5 to 6 speed but I don't think 7 is worth the trouble... I have stopped using this particular cassette and now use the 34 teeth low speed since our local area has some big hills......Good luck..