Old 07-15-18, 07:42 AM
Bike Gremlin
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Join Date: Nov 2010
Location: Novi Sad
Posts: 4,155

Bikes: Custom made on Scott Speedster frame, Custom made on a 1996. steel MTB frame (all but frame changed at least once in the past 20 years).

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QR does increase bearing preload. It can be measured, as some have explained. Front axles seem to compress somewhat more - they are of a smaller diameter than the rear ones.

I use some old spacers when adjusting preload, so I can quickly and easily check for (the lack of) play before mounting the wheel in the frame.

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