Magene P505 & T47 Clearance

[SaunaBiker55]

Building an ICAN A23 - internal T47.  With a 1mm spindle spacer, the P505 clears the BB with a little gap.  Should it be okay like this or should I look at the P515?  Using 105 Di2, not sure how much adjustment there is if the chainring moves outboard 1mm.

First bike build and first time using Di2.  Thanks

[70Herald]

The test here is... does it spin without hitting the frame? On my Ican FL1 with the new P515 the meter was just barely touching when I adjusted the preload... so I added a very thin shim which moved over the meter about 0.1mm (one of those wavey washers would be perfect) and problem solved.

2nd thing you want to look at is if the chainline is lined up. basically the center of the front chainring should line up with the center of the cluster.. a tiny bit off, thing will work, significantly off shifting gets wonky. but using normal components.. everything should work right. which is why adding excessive shims will push the chainline off.

Put it all together and see if the crank moves freely or if it is rubbing on the frame. From the picture it isn't what will happen when it is assembled.
The FD probably will handle move over 1mm.. but that may be push the whole chain line a bit off center.. so keep the shims as small as possible

[toxin]

under power, that's probably gonna rub, but you can still put it all together and try it out, ideally on a trainer where the frame is forced to flex more.