I currently have an 8 speed 11-40 cassette and 42/32/22 triple SRAM crankset on my 26r mtb. One can get a similar Shimano crankset. That is very very low. The 40T makes the derailer ride up a bit but it works. You can't cross-chain though. An 11-36 would be just as good for road use and will easily fit a stock detailer like Shimano Deore LT or XT. Reliable and cheap.
Last edited by Happy Feet; 06-25-20 at 12:20 AM.