Long time lurker, first time poster, I have a rather rambling advice-seeking question about converting to 1×11.
I have a Giant Trance 2×10 with Sram components, and I’m really keen to get it upgraded to 1×11, but I’m on a tight budget.
I believe my only options would be:
– Shimano SLX
– Sram GX
– Sram NX
But since I have a non-XD hub that throws out GX. And I read that the NX cassette would probably eat up my alloy freehub body due to having so many loose cogs!
Since I’m on a budget I was playing with the idea to keep my pressfit GXP bottom bracket, so that lands me right into the NX camp again.
I would guess my ideal solution would be mainly NX components, perhaps some GX parts thrown in, with a Shimano cassette.
So, let’s line up some questions:
– can I use a Shimano cassette with a NX derailleur?
– which pressfit bottom bracket would I need if I went with SLX? (all listed on SLX site are threaded)
– do you all have any better advice for all this?
My question is, how often do you use your lowest gear, and highest gear?
I had a 3×9 with 22/30/40 front gears, and a 11-34 cassette. I almost never used the big ring, and very seldom used the small ring. I pulled the front derailleur, spent $30 on a clamp on front chain guide, switched the front to a 32t narrow/wide with a bash ring, and changed the rear cassette to a 12-36 and just run 1×9 now..
If you did the same thing, but got the sunrace 10 speed 11-42 cassette you could run 1×10 with same range as a 1×11.
Chainline, maybe yes, maybe no,, you can use spacers to correct.. The recommend straight chainline is to the center of the cassette, but it really makes a difference what gears you use the most where your chainline really should be. Most average riders tend to ride from low to about 5th or 6th on a 1×10 and very seldom use 9 or 10.
If you mount a bash ring where your current big ring is, and your new drive ring where you current small ring is your chainline will be skewed toward the low gears, if you ride more in lower gears you would be fine. if you don’t use a bash ring, and mount the new drive ring where the current big ring is, your line will be skewed toward higher gears, in which case you should use spacers to get the line over more toward center. The caveat to that would be if they used spacers between the crank spider and the big ring on your current setup to align the chainline, then you could remove the spacers, add a bashring and the chainline should be good.
If you chainline is centered, technically with a narrow/wide front you shouldn’t need a chain guide unless you ride pretty hard all the time. I use one just in case.