Sram chainring on Shimano GRX
03-10-24, 07:58 AM
#1
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Sram chainring on Shimano GRX
Does SRAM 80 BCD chainring fit on my GRX RX600-11 chainring, inner are both 80 BCD.
I like to get a 26T, but shimano doesn't make any with 80 BCD. I look at white industries, it is easy to get the chainrings you need ,but I would have to change the crank also, expensive. Thanks
I like to get a 26T, but shimano doesn't make any with 80 BCD. I look at white industries, it is easy to get the chainrings you need ,but I would have to change the crank also, expensive. Thanks
Last edited by ve9vic; 03-10-24 at 08:35 AM.
03-10-24, 11:42 AM
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I would assume "no". Shimano bolts are not evenly spaced. Check maybe Praxis.
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03-10-24, 08:12 PM
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Also, your rear derailleur likely isn't going to handle the additional capacity you are adding going from a 30T to 26T small ring. You would then have a full 20T difference between big and small rings. I'm also not sure how the front derailleur would do shifting that, but might be just fine.
Since you obviously are looking for more low gearing, consider putting on a larger rear cassette. Assuming what you have is an 11-34, going to an 11-40, would get you a little more low end than switching from a 30T to 26T small ring. Some people have made this work just adjusting the B-screw on the rear derailleur to the extreme. Others have used a Wolftooth road link. This just lowers the derailleur allowing it to handle the large diameter rear cog. But does nothing concerning rear derailleur capacity.
Or, as I did once, I swapped the rear derailleur for an MTB derailleur (more capacity) and used a Wolftooth TanPan to allow the GRX road shifters to run the MTB derailleur since Shimano road and MTB 11+ speed stuff uses different pull ratios. This worked very well. I think with this route you might even be able to go to an 11-42 cassette, but again, you got to watch out for rear derailleur capacity.
Since you obviously are looking for more low gearing, consider putting on a larger rear cassette. Assuming what you have is an 11-34, going to an 11-40, would get you a little more low end than switching from a 30T to 26T small ring. Some people have made this work just adjusting the B-screw on the rear derailleur to the extreme. Others have used a Wolftooth road link. This just lowers the derailleur allowing it to handle the large diameter rear cog. But does nothing concerning rear derailleur capacity.
Or, as I did once, I swapped the rear derailleur for an MTB derailleur (more capacity) and used a Wolftooth TanPan to allow the GRX road shifters to run the MTB derailleur since Shimano road and MTB 11+ speed stuff uses different pull ratios. This worked very well. I think with this route you might even be able to go to an 11-42 cassette, but again, you got to watch out for rear derailleur capacity.
