ct_rider Posted July 31, 2018 Share Hi Hubbers Due to the offset on the above bike, whether crank and/or wheels, are the Shimano 2x cranks (XT / XTR) compatible with the above bike? Does anyone have anything other than the 2x Cannondale Si, BB30, 36/26 CNC Rings that comes off the Si4? It seems the issue is that the crank might hit the rear chain stays due to the offset. Thanks in advanced. Link to comment Share on other sites More sharing options...
DieselnDust Posted July 31, 2018 Share The 2017/2018 Scalpel has a 83mm bb shell +6mm for the Ai off set so a Shimano 24mm MTB spindle will fit into the frame and can be spaced corrected to achieve a suitable chain line.You will need a B30 set of shims and spacers. You will also need a PF30A compatible BB30 to 24mm axle converter. https://wheelsmfg.com/bbright-adapter-for-shimano-cranks.html orhttps://wheelsmfg.com/bottom-brackets/cannondale-bb30a.html the latter is probably the better solution Link to comment Share on other sites More sharing options...
Spinnekop Posted July 31, 2018 Share Hi Hubbers Due to the offset on the above bike, whether crank and/or wheels, are the Shimano 2x cranks (XT / XTR) compatible with the above bike? Does anyone have anything other than the 2x Cannondale Si, BB30, 36/26 CNC Rings that comes off the Si4? It seems the issue is that the crank might hit the rear chain stays due to the offset. Thanks in advanced.I'll have a look regarding the rings. Might have something. Link to comment Share on other sites More sharing options...
ct_rider Posted July 31, 2018 Share Found out that you can use the crank arms and get the "spider" that attaches to the arms with 2 rings for approx +/- R1800 - R2000. With front deraileur and shifter it works out to about R3500. Link to comment Share on other sites More sharing options...
DieselnDust Posted July 31, 2018 Share Found out that you can use the crank arms and get the "spider" that attaches to the arms with 2 rings for approx +/- R1800 - R2000. With front deraileur and shifter it works out to about R3500. is this for a Si Crank or for the Shimano? Link to comment Share on other sites More sharing options...
Spinnekop Posted July 31, 2018 Share Question.Why go "back" to 2x? Link to comment Share on other sites More sharing options...
samson99 Posted July 31, 2018 Share Found out that you can use the crank arms and get the "spider" that attaches to the arms with 2 rings for approx +/- R1800 - R2000. With front deraileur and shifter it works out to about R3500. Hey CannonSi3, I might have Shimano 11 speed XT front shifter and FD.Let me know and i will check at home. CiaoS Link to comment Share on other sites More sharing options...
ct_rider Posted July 31, 2018 Share is this for a Si Crank or for the Shimano? Apologies, this is for the SI Crank!!! So no Shimano crank needed. I have a 2x crank at home. But now I'm going to upgrade my wife's bike with that crank. Question.Why go "back" to 2x? It is preferential to my style of riding. I prefer spinning a good cadence for climbs, especially the very long climbs. Furthermore, I have reached a level of fitness where I am starting to do marathon races. Recently did the Trail Seeker Grabouw. Didn't have an issue with the 1x drivetrain through the 73km's, despite it being muddy AF! I do have the strength, fitness and endurance for a 1x drivetrain. However, for me, the further I was riding into the race, the less I wanted to grind and the more I wanted to spin. I feel I can conserve far more energy and ride harder throughout the whole race with a 2x11. Regarding the weight and shiftting hassles, same is negligible. Link to comment Share on other sites More sharing options...
ct_rider Posted July 31, 2018 Share Hey CannonSi3, I might have Shimano 11 speed XT front shifter and FD.Let me know and i will check at home. Ciao Cool let me know Link to comment Share on other sites More sharing options...
Spinnekop Posted July 31, 2018 Share Apologies, this is for the SI Crank!!! So no Shimano crank needed. I have a 2x crank at home. But now I'm going to upgrade my wife's bike with that crank. It is preferential to my style of riding. I prefer spinning a good cadence for climbs, especially the very long climbs. Furthermore, I have reached a level of fitness where I am starting to do marathon races. Recently did the Trail Seeker Grabouw. Didn't have an issue with the 1x drivetrain through the 73km's, despite it being muddy AF! I do have the strength, fitness and endurance for a 1x drivetrain. However, for me, the further I was riding into the race, the less I wanted to grind and the more I wanted to spin. I feel I can conserve far more energy and ride harder throughout the whole race with a 2x11. Regarding the weight and shiftting hassles, same is negligible. Interesting view point. I'll check for you in the garage. Think I still have a spider and two chainrings.We'll talk funky tomorrow if you want. Link to comment Share on other sites More sharing options...
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