Pinhead Locks

Will Pinhead Fit Your Bike? Compatibility Explained

Getting the right Pinhead kit starts with knowing exactly what axle standard your bike runs. Most road and older mountain bikes use a quick release (QR) skewer - typically 100mm spacing at the front and 135mm at the rear. Pinhead's standard QR kits are built around these dimensions, and fitting is straightforward. Track bikes and fixed-gear setups with bolt-on solid axles need Pinhead's Solid Axle kits instead, which use a different thread interface entirely.

Thru-axles are where you need to be precise. Modern mountain bikes and many gravel bikes run thru-axles, and Pinhead security skewers are available in thru-axle versions - but you must match two measurements before ordering: the overall axle length and the thru-axle pitch. Pinhead covers pitches of 1.0mm, 1.5mm, and 1.75mm, and getting this wrong won't just mean the part doesn't fit - it can strip the threads in your frame or fork dropout. Not a repair you want to be explaining at the shop. Remove your current thru-axle and measure it, or check your frame's spec sheet. When in doubt, take it to a mechanic before ordering.

Seatpost collars and headset top caps are generally less fussy on sizing, but double-check seatpost diameter (common sizes are 27.2mm, 30.9mm, and 31.6mm) before adding those to your order. Pinhead lists compatibility clearly per product, so cross-reference carefully.

Pinhead Sets: Choosing the Right Pack

Pinhead sells its anti-theft components in bundles, and the pack you need depends on how many components you're trying to secure and where you're locking up.

The 2-Pack covers front and rear wheel skewers - the most commonly stolen components, and the right starting point if you're on a tight budget or your bike lives somewhere reasonably secure overnight. A step up, the 3-Pack adds a seatpost collar lock, which matters more than people think: saddle-and-post theft is a daily occurrence in most city centres, and a decent saddle is worth protecting. If you're commuting regularly into a busy urban environment, the 4-Pack - wheels, seatpost, and headset - is the one to go for. It leaves no obvious weak point for an opportunist, and the cost difference over the 3-Pack is modest for the peace of mind it buys.

Pinhead also makes the Pinhead Bubble Lock, their take on a compact U-lock, which can be ordered keyed alike to your component skewers. One key for everything on the bike. That's genuinely useful when you're fumbling with gloves on a wet November morning in Leeds. It's worth considering whether a dedicated heavy-duty lock from Kryptonite or Abus might serve as your primary frame lock alongside Pinhead's component system - the two approaches complement each other rather than compete.

Riders looking at comparable component-level security from other specialist brands might also consider Pitlock, whose system uses a similar skewer-replacement approach. The coded key mechanisms differ in detail, so it's worth comparing the specifics of each before committing. For broader lock coverage - cables, chains, folding locks - Hiplok offers a solid range worth browsing alongside your Pinhead shortlist.

Keeping Pinhead Skewers Working Through a UK Winter

Here's the thing about Pinhead skewers that catches people out: unlike a standard QR you might swap between bikes or remove for cleaning, Pinhead fasteners stay on the bike. Permanently. Which means they're exposed to everything a British winter throws at the roads - road salt, standing grit, and the kind of persistent damp that works its way into threads and causes solid axle and skewer seizure over a season or two.

The fix is straightforward and worth doing at installation rather than after the fact. Apply a good anti-seize compound or marine grease to the threads before fitting. Don't use standard chain lube - it washes out. Anti-seize is the right call, especially on any steel-on-alloy interface where galvanic corrosion can build up quietly over winter. If you're running Pinhead wheel locks on a bike with an alloy frame, this step isn't optional.

The coded key system itself needs a little attention too. The multi-pinned mechanism is precise, and if grit works into the key interface, engagement becomes stiff and eventually unreliable. A dry PTFE lubricant - not an oil-based spray - applied occasionally to the key contact point keeps things running cleanly without attracting dirt. Store the key somewhere dry; a damp keyring isn't ideal long-term.

If you're fitting these yourself rather than having a shop do it, use a torque wrench and follow Pinhead's specified values. Over-tightening a chromoly fastener into an alloy dropout is a mistake that doesn't announce itself until you try to remove it. The forged chromoly steel construction gives Pinhead excellent shear strength, but that's working in your favour against thieves - not as a reason to go heavy-handed with a spanner.