dirtypot Posted April 29, 2019 Share Will a 50 work with a original 1 x 11 derailleur? Yes, it will work, but its a massively stretched system and will degrade the shifting over all of your gears due to the B screw needing to be cranked all the way in to clear the 50T. Remember that the 11sp RD's were designed with 42T cassettes in mind. They can quite comfortably do a 46T cassette but the stretch to 50T is too great in my opinion. I've fitted the 50T to an XT and XTR RD's as well as XX1 - they all 'worked' (not well) but were all flawless with the 46T cassette instead. I run oval chainrings and have no intention of going back to a round ring - 32T most of the time and 34T if I'm doing something long (gran fondo +) where I find the ratios better for grinding out miles. arendoog 1 Link to comment Share on other sites More sharing options...
CdT85 Posted April 29, 2019 Share Running a 34 oval up front on both my bikes. Both is 650b. My enduro rig is running a sunrace 11-50 with a shimano slx gs m7000 rd.And my hardtail is running a sunrace 11-46 with a Sram X1 horizon rd. Just went 1 x11 on my hardtail so can't comment on the 11-46 with the 34T up steep climbs. But on my enduro rig with the 11-50, i can climb anything so far. Only gripe i have with it is occasional chain drops in steep technical switchback climbs if I "back pedal" to keep balance. Best thing is to maybe put together a kit from spares in stead of buying an upgrade kit. Most 11 speed rd's are limited to a 42T max capacity. Go for a Sram NX/GX rd or Shimano M7000 GS (SLX) or the M8000 GS (XT) rd with a sunrace 11-46 (stay away from xt, K## gear ratios) or a 11-50 from sunrace too. And get yourself a 30,32 and 34T oval chainrings from Rapide. That way you can play with your gear ratios depending on your fitness/strength or terrain Link to comment Share on other sites More sharing options...
Pieterlab1 Posted April 29, 2019 Share Love my oval chainring with 1x12 ! arendoog 1 Link to comment Share on other sites More sharing options...
madmarc Posted April 29, 2019 Share Think a 34T with 11-46 is all the gears you will need. I ride an oval and it is much easier on my knees. Also "feels" like I climb better on an oval Was gonna respond in nearly the exact words. I experienced the exact same thing when i changed from 2 x 10 to 1 X 11. I since gone to 1 X 12 but still run a 34t oval more than enough ratio on the flats and the climbs - and i suck at climbing Link to comment Share on other sites More sharing options...
wildwindfr Posted April 29, 2019 Share I love my oval. Running a 1x10 34T front and 11-42 rear. Looking at going 1x11 wit a 36T front and 11-46 rear.I am a relatively strong climber and find I run out of top end on the flats.You have to adapt to suite your needs. Link to comment Share on other sites More sharing options...
ChrisF Posted April 30, 2019 Share Yes, it will work, but its a massively stretched system and will degrade the shifting over all of your gears due to the B screw needing to be cranked all the way in to clear the 50T. Remember that the 11sp RD's were designed with 42T cassettes in mind. They can quite comfortably do a 46T cassette but the stretch to 50T is too great in my opinion. I've fitted the 50T to an XT and XTR RD's as well as XX1 - they all 'worked' (not well) but were all flawless with the 46T cassette instead. I run oval chainrings and have no intention of going back to a round ring - 32T most of the time and 34T if I'm doing something long (gran fondo +) where I find the ratios better for grinding out miles. Interesting .... We bought the XT shifter and derailure to use with the 11-50 11-speed Sunrace - as advised by my LBS. To be fitted when we get the frame back from the painters .... HOWEVER - my LBS did advise me to go for the longest chain possible, couple of links longer than the classic "+4" approach ..... according to my LBS it helps to determine the chain length on the small wheel at the back, with the least amount of stretch on swing-arm. This in turn means less stretch when on the largest wheel at the back .... HOPING this makes for smooth(er) shifting ... Link to comment Share on other sites More sharing options...
Boerklong Posted April 30, 2019 Share 34 up front and 11-46 at the back for me snd I'm not super strong. I tried the 32, but changed it to 34 after a couple of rides. Link to comment Share on other sites More sharing options...
Boerklong Posted April 30, 2019 Share Ps. Rapide oval with xt 11-46 upgrade kit. Link to comment Share on other sites More sharing options...
RobertWhitehead Posted April 30, 2019 Share I used to have a 1x10 with a 32T oval in the front on my 26er . I then built a 29er with a 1x11 and 34T oval. For me, (this is my experience) - I found that the 34T makes me considerably slower on the climbs because you try to conserve so you automatically use a smaller gear and then end up spinning more than needed. I then swopped the cranks (BCD's on the chainrings are different) and that to me is the sweet spot. A 32T oval in the front with a 11-46T at the back. I climb much stronger and faster and never feel that I do not enough gears. To me a 2x10 config is very annoying and you always fiddle to get the right gear - hence why I went with the 1x10 Link to comment Share on other sites More sharing options...
Motard660 Posted May 7, 2019 Share Duplicate Edited May 7, 2019 by Motard660 Link to comment Share on other sites More sharing options...
Motard660 Posted May 7, 2019 Share Another question.....Do you require spacers on the chainring when converting from 2x10 to 1x11. XT crank. Link to comment Share on other sites More sharing options...
Ruru Posted May 21, 2019 Share Hey Motard. As I understand the chainrings for 2x are different than 1x. I dont think spacers are required when fitting the 2x rings. As I remember it the SLX and XT cranks can be changed between 2x and 1x. Link to comment Share on other sites More sharing options...
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