modify dropouts?

Scooter McGavin

100 µW
Joined
Mar 28, 2024
Messages
8
Location
Canada
2nd build. The first one went so smoothly I went into my wife's build maybe a little cocky.

The bike is her pride and joy - a Norco that she loves. This ups the stress level for me. The pics probably tell the entire story - looking for recommendations on how to make this work.

Thanks!
 

Attachments

  • 20240421_174120.jpg
    20240421_174120.jpg
    822.2 KB · Views: 19
  • 20240421_174148.jpg
    20240421_174148.jpg
    798.7 KB · Views: 17
  • 20240421_174217.jpg
    20240421_174217.jpg
    804.3 KB · Views: 17
  • 20240421_174257.jpg
    20240421_174257.jpg
    850.7 KB · Views: 16
  • 20240421_175805.jpg
    20240421_175805.jpg
    769.2 KB · Views: 16
  • 20240421_175836.jpg
    20240421_175836.jpg
    720.2 KB · Views: 18
Don't mess with the dropout slots. Use a torque arm or two, outside the dropouts. I prefer to drill and tap a hole in the dropout to anchor a one piece TA rather than using a fiddly multi piece assembly with hose clamp like a putz. So it would make sense to use the left side dropout for that. If you can place a screw on the right without compromising the integrity of the dropout and replaceable derailleur hanger, then you can use TAs on both sides.

IMG_20240216_210153.jpg
 
Last edited:
2nd build. The first one went so smoothly I went into my wife's build maybe a little cocky.

The bike is her pride and joy - a Norco that she loves. This ups the stress level for me. The pics probably tell the entire story - looking for recommendations on how to make this work.

Thanks!
Since you aren’t using disc brakes you don’t need to modify. If you had disc brakes, then filing the dropouts 1mm deeper will allow the 12mm axle to mount with the same axle centerline as the 10mm bicycle axle, so the brake pads would be aligned.
 
You guys are great. In a shocking departure from the norm I listened and followed (nearly) your advice.

I did slightly tweak the dropouts to allow for the larger diameter bolt to seat to the bottom of the dropout. Maybe picked up a mm+ but it made me feel better. I through bolted a torque arm and switched the orientation of the hub wiring as well.

I did not use any washers on the outside of the sprocket side as I felt the flanged nut would bite into the aluminum a bit and provide a more secure connection. I hope the gurus agree.

Thanks guys. It's always fun to put the first 4 hours into a "one hour install".

edit - I was just checking the fitment earlier before mounting the brake disc.
 

Attachments

  • 20240421_215836.jpg
    20240421_215836.jpg
    680.3 KB · Views: 12
Back
Top