[Closed] Non boost cranks on boost frame spacers

I think using the extra spacers (say using all the spacers on a 73mm BB eg) would likely mean that the crank axle would not engage properly on the other side (nds for shimano crank). It would appear too short.

Pretty much if you're lucky but it mainly comes down to clearance of the chainring and d/s chainstay.

If you can manage that with bb spacers then fine, provided you've still got crank clearance on the nd/s, and don't need more than three spacers in total in terms of bb axle length. I have two boost frames with old style cranks and they are fine albeit both are very tight (sub 0.5mm) for chainring clearance.

Edit: what I suppose I'm saying is that not all frames are created equal and you won't know until you try it...

Same here. I have two Boost steel HTs with Shimano non-Boost cranks and haven't experienced issues.

I'm also running 2 boost frames with non-boost cranks. No issues with 30 or 32t chainrings. Not sure if 34t would clear the chainstay?? Non-boost gives me a better chainline anyway.

I dont think running extra spacers wodl work. As mickolas said, you might not get the axle to fully engage along the whole spline. Not sure what issues that could cause.

You can also look at getting zero offset chainrings. I think a lot of them are 3mm offset?? Zero would space it outboard compared to 3mm offset.

Not sure if this will help at all. Here is a video where a guy changes teh chainring offset to get a non-boost crankset to work. MTB Telly on you tube. Greast vids. Link below

youtube.com/watch?v=_ob45ZImJq8

Got non boost SX on a Scandel plenty of clearance and it all works