1x11 Conversion Questions - Surly Pugsley

[tlarwa]

So I started a different thread regarding the modification of the 1x9 set-up currently in place on my Pugsley:

https://forums.thepaceline.net/showthread.php?t=229148

But as I look into it more, I can pick up a used Shimano SLX 11-speed mini group (RD, shifter, 11-42 cassette and chain) for about $100 on Pinkbike, so it seems this would be the way to go. I just ordered a 32t Race Face narrow wide ring, so I think I'm set on the front. I'll continue to use the SRAM X5 double crankset that's on the bike now, and leave the 22t ring in place in case I need to go to it manually if the snow gets too deep.

Just want to confirm that I can essentially replace the RD, cassette, shifter and chain and be good to go. The wheels are Surly Large Marge and the rear hub is a Deore M585 (currently with a 9 speed Shimano cassette). I assume the 11 speed SLX cassette will work on this hub?

Anyone see any issues going this way? I'd essentially end up with a 1X11 set-up with all the gear range I'd need. I need to put new cables on the bike anyway, so swapping the drivetrain at the same time makes sense! I appreciate the input.

[Jaybee]

Should work just fine. The 11sp SLX cassette will fit on any Shimano 8/9/10 speed freehub body.

[tlarwa]

Originally Posted by Jaybee

Should work just fine. The 11sp SLX cassette will fit on any Shimano 8/9/10 speed freehub body.

Thanks! Just wanted to verify before pulling the trigger!

[Jaybee]

Originally Posted by tlarwa

Thanks! Just wanted to verify before pulling the trigger!

No problem. Just make sure the chain is sized for both front chainrings.

[tlarwa]

Originally Posted by Jaybee

No problem. Just make sure the chain is sized for both front chainrings.

ooh, good call. I'm sure the 22t inner ring is 9 speed, and I'll need to use an 11 speed chain for everything else. Shouldn't matter though, since I doubt I'll need to manually switch to the 22t ring with a 32-42 gear available.

[Jaybee]

Sorry, by "sized" i meant chain length. You don't want a chain that is too long for the 22/11 combination - nor do you want a chain too short for 32/42.


YMMV, but I regularly use my 46t big cog on snowy trail rides and that's with a 28t front.



Using an 11 speed chain should be fine for both of your front rings.

[tlarwa]

Originally Posted by Jaybee

Sorry, by "sized" i meant chain length. You don't want a chain that is too long for the 22/11 combination - nor do you want a chain too short for 32/42.


YMMV, but I regularly use my 46t big cog on snowy trail rides and that's with a 28t front.

Thanks ... maybe I will be using the 22t ring then! And I'm not really sure how to correctly determine the chain length that'll work with a 22/11 and a 32/42 ... any suggestings?

[Jaybee]

https://www.artscyclery.com/learning...izeachain.html