Common Cone Wrench Sizes



Mathias TN

New Member
Oct 5, 2011
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I am working on building my bike tool collection. There have been a few situations where I could have used a cone wrench. I looked up sets and most come with the following sizes, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm and 19mm, so I assume these much be pretty common. I notice the also sell them 20mm+ as well. I am not mechanically inclined enough to just look at the part to determine what size I need so I cant just purchase an individual wrench. Thanks in advance for any replies.
 

qdc15

Member
Aug 18, 2004
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You might want to purchase a caliper to measure your cones. You will find it handy for many measuring tasks.


A simple ruler could be used though.
 

dhk2

Active Member
Aug 8, 2006
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I bought a set of cone wrenches ages ago. Two double-sized stamped steel wrenches, four sizes total. These cheap sets may still be available. Another approach would be to just take the wheel into the LBS and buy a wrench from them. A mechanic will likely look at the hub and tell you what you need. LBS here sell tools, often Park.

Agree a vernier caliper is useful for alot of things on the bike, like checking seatpost and stem diameter, chain wear. I've got a cheapo model, under $15 from Harbor Freight that works fine for home shop use.
 

alienator

Well-Known Member
Jun 10, 2004
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Originally Posted by dhk2 .

I bought a set of cone wrenches ages ago. Two double-sized stamped steel wrenches, four sizes total. These cheap sets may still be available. Another approach would be to just take the wheel into the LBS and buy a wrench from them. A mechanic will likely look at the hub and tell you what you need. LBS here sell tools, often Park.

Agree a vernier caliper is useful for alot of things on the bike, like checking seatpost and stem diameter, chain wear. I've got a cheapo model, under $15 from Harbor Freight that works fine for home shop use.

...and the calipers can be used to measure chain wear.
 

tafi

Member
Jul 31, 2003
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I'd be determining which sizes you actually need first from what kind of hubs you use. But yes the set you've mentioned covers all the main sizes. I've never used a cone spanner that was not between 13 and 17mm.

It really depends on what hubs you use. I have either DT or campagnolo hubs so I only ever need one cone wrench for the Campag lock ring. I got one for free by grinding out a cheap plate spanner, which came with some self-assembly furniture.