What size BB is that? Might sound crazy, but is it possible you installed a T47x in a T47i or T47a frame? What is the frame?
bikey-bikey on
Use a smaller spacer and adjust preload
SSSasky on
More than likely you have the wrong spacers installed for your setup, but you didn’t provide a single useful detail, so I guess we’ll never know!
¯\_(ツ)_/¯ ¯\_(ツ)_/¯ ¯\_(ツ)_/¯
Other issues could be preload set too high, bad bearings, bad bearing alignment, BB not fully installed, something dragging internally …
mxgian99 on
does this BB include a plastic sleeve inside the shell? if so try it without it. but ditto below, make sure preload is not yet adjusted until you tighten it down
Wolfy35 on
Remember when you set the preload?
pumpkinmeerkat on
looks like a lot of spacer
Electricplastic on
Preload brother.
F-Riding on
I’ve also seen incorrectly routed internal cables and housing rubbing on the crank spindle. Other possibility when installing is the plastic BB spindle shroud of the BB didn’t get properly aligned and is deformed rubbing on the crank spindle. Have seen both of these occur especially the improperly routed internal cables as if late. Worth a look at those in addition to bearing pre-load. In my experience with SRAM cranks you have to be really cranking down the preload adjuster to get this much friction (assuming correct spacers and seals weren’t knocked loose on install.
EngineeringField on
There is a lack of information so I’ll go with the first thing come to my mind. if the used beairng here is sort of an open bearing where you place the marbles in place yourself, it should’ve missing one here. When the system works with one less marble, the whole set stucks at one side of the bed because of the caused gap from the lack of that missing marble. You need to add one if that’s the problem so. But I don’t think its an open beairng neither so you’re on this yourself as long as you continue providing us with that much least info possible whilst asking the help.
Mark85k on
Too tight? Damn that’s odd lol
Diogenes256 on
That looks like something that would happen to me. Fuck.
DannysMyNanny on
Make sure the preload is set right. I would loosen the 2mm screw on it, turn it counter clockwise and see if the cranks spin correctly.
14 Comments
unscrew the preload adjuster, screw the crankset screw and then adjust the preload
https://preview.redd.it/3xk7hr1e58ye1.jpeg?width=1000&format=pjpg&auto=webp&s=dbbd9c9170ae60638f13f519b5e1ea130733b24e
Ease off on the pre-load?
What size BB is that? Might sound crazy, but is it possible you installed a T47x in a T47i or T47a frame? What is the frame?
Use a smaller spacer and adjust preload
More than likely you have the wrong spacers installed for your setup, but you didn’t provide a single useful detail, so I guess we’ll never know!
¯\_(ツ)_/¯ ¯\_(ツ)_/¯ ¯\_(ツ)_/¯
Other issues could be preload set too high, bad bearings, bad bearing alignment, BB not fully installed, something dragging internally …
does this BB include a plastic sleeve inside the shell? if so try it without it. but ditto below, make sure preload is not yet adjusted until you tighten it down
Remember when you set the preload?
looks like a lot of spacer
Preload brother.
I’ve also seen incorrectly routed internal cables and housing rubbing on the crank spindle. Other possibility when installing is the plastic BB spindle shroud of the BB didn’t get properly aligned and is deformed rubbing on the crank spindle. Have seen both of these occur especially the improperly routed internal cables as if late. Worth a look at those in addition to bearing pre-load. In my experience with SRAM cranks you have to be really cranking down the preload adjuster to get this much friction (assuming correct spacers and seals weren’t knocked loose on install.
There is a lack of information so I’ll go with the first thing come to my mind. if the used beairng here is sort of an open bearing where you place the marbles in place yourself, it should’ve missing one here. When the system works with one less marble, the whole set stucks at one side of the bed because of the caused gap from the lack of that missing marble. You need to add one if that’s the problem so. But I don’t think its an open beairng neither so you’re on this yourself as long as you continue providing us with that much least info possible whilst asking the help.
Too tight? Damn that’s odd lol
That looks like something that would happen to me. Fuck.
Make sure the preload is set right. I would loosen the 2mm screw on it, turn it counter clockwise and see if the cranks spin correctly.