3 thoughts on “Pinhead M9 Locking Wheel Axle Nuts

  1. 9 of 9 people found the following review helpful
    4.0 out of 5 stars
    Can’t put a price on security, June 30, 2013
    By 
    skuyler

    Verified Purchase(What’s this?)
    This review is from: Pinhead Solid Axle Bicycle Wheel Lock (Sports)
    I very much don’t want to have my wheels stolen, so I bought a pair of these. For those who ride road/track/fixed gear bikes, the axle diameters are usually different for front & rear. Front is 9mm and rear is 10mm. With that said, you don’t want to use one of these for the rear because it may not be able to be torqued down hard enough for those who ride fixed and brake with their legs.

    Best bike-locking security recommendation: lock your bike with a u-lock through the rear triangle and use these nuts on the front. Frame and both wheels are secured.

    I’m a cheap man and I own lots of bikes, so I only use one of these locking nuts on the front wheel. I put the other locking nut on a different bike’s front wheel. Now I can secure the front wheels of two different bikes.

    Getting these things torqued down is kind of a pain because the custom key (which fits in a 15mm wrench/socket) has a tendency to slip off when you’re applying pressure. This is good because it’ll be harder for thieves, but it’s annoying, too. Minus 1 star.

    Overall I have peace of mind while my bike is locked up. $30 is a whole lot cheaper than replacing two wheels.

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  2. 4 of 4 people found the following review helpful
    1.0 out of 5 stars
    Broke after three days, January 20, 2014
    By 
    Molly

    I bought these after a recommendation by my LBS mechanic, installed with with ease and when I was sitting at my desk, next to my bike, I heard a loud SNAP, and found a chunk of the nut had broken off and flown across the room. The nut then became even more difficult to get off because it looked like PAC-Man with one of the grooves missing.

    I have contacted the company shortly before this post, after business hours and will update as necessary.

    Looking at the nut, it’s clear that it’s stamped metal and not nearly as strong as the nuts you normally secure your wheels with. As much as I hate to admit, I’ll likely be carrying two locks or taking off my front wheel to lock both together.

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  3. 5 of 6 people found the following review helpful
    4.0 out of 5 stars
    Pricey but works well, June 7, 2013
    By 
    Cong Lu

    Verified Purchase(What’s this?)
    This review is from: Pinhead Solid Axle Bicycle Wheel Lock (Sports)
    I lock my fixed gear every night to a parking meter in a sketchy area downtown. I bought these after both wheels were stolen. They are simply security nuts with coded keys, and at around $15 per nut, they’re not cheap. However they do deter average theives. Some mornings I can see that the bike has been messed with, but then left alone. I did a fair amount of research and found no better alternatives, just wish people were less shady.

    Be sure to find out the size of your axels before buying. The rear axel diameter (10) is usually larger than the front (9).

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