Pinhead Quick-Release 4-Pack Locks for Wheels Seat Post & Headset

Customer Reviews (1)
5 / 5| Write your review
£59.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Includes front and rear wheel locking skewers, seatpost lock with seat collar, headset lock, and coded key. Prevents removal of your wheels, seatpost, front fork, stem from your frame. Protects your wheels, seatpost, and stem for a fraction of their replacement cost.

Keyed-alike sets can be ordered to protect your other bikes.

- Front Skewer (125mm), installed weight 33g
- Rear Skewer (168mm), installed weight 37g
- Seatpost Collar w/shims to fit seatpost sizes 28.6-31.8mm, installed weight 41g
- Headset lock and adaptor cap, installed weight 19g
- Lock Nuts (3), Washers (3) and Rubber Caps (3)
- POG Security Washers (2)
- Quick-Release key (1)

Pinhead quick release wheel, seatpost, and headset locks protect the front wheel, rear wheel, seatpost, and headset. Once installed, the locks remain permenantly on your bicycle, even when you ride. When you need to remove your wheels for servicing, your Pinhead key lets you do this quickly and easily. Pinhead locks cannot be removed with tools such as hammers, pliers, picks, universal socket tools, grinders or bolt cutters. The convex disc technology prevents your wheels and seatpost from being removed by bike thieves.

The locks use a special coded key that comes with each lockset. The key is ergonomically engineered to install and tighten your locks, and serves as a bottle opener. Each key is different, and comes engraved with a nine-digit code so it can be replaced if lost, direct from Pinhead. With your key code, matching locks can be ordered to protect your other components or other bikes.

All components are precision forged from corrosion-resistant CrMo steel and aircraft aluminium alloys. Pinhead locks are unmatched in quality, and backed by lifetime warranty.

Make sure to register your key code at so that if your key is lost, a replacement key can be made for you.
Product Reviews (1)
Questions & Answers (1) Q & A
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Product Reviews (1)
Overall Product Rating 5 / 5
Helpful, easy to fit and difficult to crack
By Charles Soper
30 May 2023
5 / 5
I recommend this product
ConsMake sure you register & check the bolts are well secured
ProsEasy to fit, very tough to crack
Easy to replace the existing bolts and nuts, took me about 30 minutes. I have much greater security now that the front wheel won't be whisked away in seconds by an dexterous thief or the saddle removed. Strongly recommended and popular I'm told on NYC where bike thieves are like piranhas.
Questions & Answers (1)
Pinhead locks
05 Dec 2023
Nomad 650b, SON 28 Disc through axle front and Rohloff q/r rear.
Do you have suitable Pinhead locks for both axles, seat clamp and steerer cap?
For any information or advice on any of Thorn bikes, frames and forks or parts, please contact our dedicated Thorn bikes sales team either on 01278 441505 or [email protected] and they'll be able to provide you with all of the information you need.