That’s probably pushing the maximum capacity of most long cage derailleurs a bit too much (that works out to be 51t when you ideally want to be closer to the 45t mark). If you want a low gear like that, I’d suggest dropping to a 40-24t chainring set if that’s an option.

If a 50/34 Crankset works (and I know Alee uses that on one of his bikes), then you should have no problem with the 44/24T Crankset. If anything it will provide you with a better capacity. Just make sure you use a medium or long road bike derailleur in the back, and add the Road Link. I must say, your new lowest gear with 24T up front and a 42T in the cassette would give you a very very low gear ratio of 24/42 = 0.57. I currently use a 44/32/22T with a 12-36T cassette and I find my lowest gear (22/36 = 0.61) is plenty low… It’s almost like walking LOL.

This is very usefull infomation to hack in such many combination, im planning to use crank with dual chainring 44 – 24 and 11 – 42 cassette (11speed) by using shimano sti road bike shifters, do you reckon this combination will work flawlessly?

Hi Mats, I have almost the exact same situation. I am using the Deore 9 Speed 44-32-22 Crankset but for the back I have swapped out the 11-34T for a Shimano 9 Speed 12-36T which is the lowest you can go for that setup. Without that back 36T cog, I couldn’t climb up the trail back to my house.. I just pedal slowly but surely and it gets me home. It should be a quick and easy swap of the cassette. Look up on Chain reaction… it should be pretty cheap.

The person who told you that you need a spacer is correct. The wide range cassettes are indeed narrower due to the increased vertical distance between cogs. You should therefore be able to fit any of the cassettes you listed.

Current setup:
– Aivee Edition One road rear hub
– SRAM Rival 22 group (11-speed) with medium size derailleur
– SRAM Rival PG-1130 cassette (11-fach) 11-32

My plan:
11-40 tooth or 11-42 cassette
Wolf Tooth Roadlink

My questions:
Which of the following (MTB) cassettes can I install on the hub and which will work with the road SRAM Rival 22?
– SRAM MTB cassettes with 11-40 teeth
– Sunrace CSRX8 RX 11-Speed Wide Ratio Cassette 11-40
– Shimano Deore XT 11-40t Kassette
– Shimano XT CS-M8000 11-40t Kassette

Someone told me that I can install any of these but that I need a 1.85mm spacer for the MTB cassette even if this is 11-speed. Does that mean the cassette is smaller? Will that cause performance issues?

Looking forward to your recommendations.

You’re right. I was certain I’d seen a bike with this setup, but it turned out to be using a 10 speed mountain bike derailleur. I’ll amend everything now!

Have you done this or seen it done? I was under the impression it wouldn’t work. They changed the pull slightly for X-actuation (11 speed MTB) while stuck with the same ratio for road (exact actuation). I’ve heard this from SRAM tech guys, and it’s consistant with the data out there:

http://blog.artscyclery.com/science-behind-the-magic/science-behind-the-magic-drivetrain-compatibility/

What can be done, however, is described by Nick Payne above, running an 11 speed road shifter with a 10 speed mountain derailler.