I recently started exploring putting larger 11-36t cassettes on road bikes, and I've also seen many youtube so called "hacks" to go beyond the specified range of a road bike.
What confuses me is this table here that shows the pitch of a cassette. It says that for 11s cassettes, mtb and road have different cog pitch. An MTB cassette wouldn't index right on a road bike then, right?
What about all these fancy 1x sram systems for road. They seem to use some of the same cassettes as they offer to mtb. A cassette series is called PG1130 that can go all the way from 25t to 36/42t. When does this cog pitch difference then take place and shoudn't the cassettes have different model numbers?
- Cassette Sprocket Pitch Code Sprocket Thickness Spacer Thickness Stack Width
mm. mm. mm. mm.
Campagnolo 10-speed 4.15 C10 1.7 2.42 38.8
Shimano 10-speed 3.95 S10 1.6 2.35 37.2
SRAM 10-speed 3.95 S10 1.6 2.35 37.2
Campagnolo 11-speed 3.85 C11 1.6 2.25 40.1*
Shimano 11-speed 3.74 S11 1.6 2.14 39.0*
SRAM 11-speed 3.72 na na na na
Shimano 11-speed mtb 3.9 na na na na
SRAM 11-speed mtb 3.9 na na na na
I have a an old 10s sram red derailleur (max 28t). I recently obtained a "road link" and I'm interested in shelling out big cash for a sram XG1099 cassette 11-36t. Seems 10s doesn't have this difference in pitch. Can someone confirm?
My friend has a sram PG1130 11-36t cassette on his road bike with a shimano ultegra 6800 mid cage derailleur and it seems to work fine. Is this an erroneous pitch match or what?