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Cone spanners?

ruswilksruswilks Posts: 114
edited July 2008 in MTB workshop & tech
I have a slight bit of play in my rear hub, and am looking at tightening the cone to get rid of it. Park tools say you need a cone spanner to do this, but I was wondering, what is the difference between a cone spanner and a normal one of the right size? Why must you use a cone spanner? I'm sure there's an obvious answer, but I'm curious?


  • AnonymousAnonymous Posts: 79,692
    cone spanners are much thinner, and allow you to tighten the locknut effectively.
    A norml spanner's width means you'd struggle, at best.
  • ruswilksruswilks Posts: 114
    Thanks, anyone know which sizes are standard for Shimano Deore (M525) hubs?
  • supersonicsupersonic Posts: 82,708 Lives Here
    13mm front, 15mm rear: 17mm locknuts (for a normal spanner)
  • redveeredvee Posts: 11,921
    You'll be probably see double ended spanners in LBS 13/14mm & 15/16mm. Word of warning, do not use the 15mm for your pedals as you'll turn it into a 15.5mm :shock:
    I've added a signature to prove it is still possible.
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