Top 9 Pinhead Seat Post Lock UK – Cycling Locks

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1. Pinhead

One Size, Pinhead Quick Release Wheel/Seatpost Lock 3 Pack, Black

Pinhead - Double latched. Opens only with Pinhead key. Improved shackle shape. Hidden entry access. Available in black colour.
BrandPinhead
ManufacturerPinhead
Height2.03 cm (0.8 Inches)
Length14.99 cm (5.9 Inches)
Weight0.3 kg (0.66 Pounds)
Width2.03 cm (0.8 Inches)
Part NumberPH-111
ModelPH-111
WarrantyLimited lifetime.

2. Pinhead

Pinhead Unisex's Locking Seat Clamp Seatpost, Black, Solid Axle Key

Pinhead - Replaces your existing seat post clamp if it is used to lock your seat post. Easy, one-time installation. Online lost key replacement available for keys registered with Pinhead. Protection for: your saddle Or your seat post. Materials: precision forged cro-mo steel and aircraft grade aluminium alloy.
BrandPinhead
ManufacturerPinhead
Weight0.09 kg (0.19 Pounds)
Part NumberG8
ModelG8
WarrantyLimited lifetime.

3. ETC

ETC Front Rear and Seat Post Skewer Set Triple Tool Locking, Black

ETC - Available in black colour. Front, rear and seat post skewer set. 135 mm skewer length. Rail made of steel. Triple tool locking.
BrandETC
ManufacturerETC
Weight0.14 kg (0.31 Pounds)
Part NumberEQR032B
ModelEQR032B

4. Pitlock

Multicoloured, Pitlock Unisex's Set 06 Seat Post Bolt Lock, One Size

Pitlock - Material: Synthetic. Ensure the outer contact surfaces of the saddle clamp are flat and parallel. 1 pit with code. 1 pit with code. Color: Multi-coloured. If not, see PISC range. Seat post bolt installation width = 33 mm standard.
BrandPitlock
ManufacturerPitlock
Part NumberPISET6
ModelPISET6
WarrantyNo Warranty

5. Pinhead

Silver, 3.49 cm, Pinhead Seat Post Lock with Collar

Pinhead - Loosens quickly to adjust saddle. Size: 34. 9 mm. Easy one-time installation. Available in silver colour. Locks seat post to the frame.
BrandPinhead
ManufacturerPinhead
Part NumberALA222

6. Hard to find Bike Parts

Hard to find Bike Parts PINHEAD WHEEL & SEAT LOCKING SYSTEM FOR M9 & M10 SOLID AXLE CYCLE WHEEL & 28.6mm/31.8mm SEATPOST LOCK RRP £39.99

Hard to find Bike Parts - Weight 105grams approx - Product code number: ALA226. The pinhead wheel and seat locking System uses one key that locks up the front wheel, rear wheel and seat post. One m9 front locking wheel nut - One M10 rear locking wheel nut - Key to suit all. This set comprises of universal seat post clamp with shims for 28. 6 and 31. 8mm. Please check your axle sizes/threads before buying if in doubt please ask.
BrandHard to find Bike Parts
ManufacturerHard to find Bike Parts
Weight0.1 kg (0.23 Pounds)

7. Pinhead

Pinhead 4 pack

Pinhead - Available in black colour. Nylon bag. Includes wheel locks, seat post lock and headset lock. Coded key type. One key locks everything.
BrandPinhead
ManufacturerPinhead
Height2 cm (0.79 Inches)
Length15 cm (5.91 Inches)
Weight0.23 kg (0.5 Pounds)
Width2 cm (0.79 Inches)
Part Number112
ModelPH-112
WarrantyLimited lifetime.

8. Pinhead

Pinhead 128 Seat clamp & Solid Axle Bicycle Lock Set, M9 & M10, Set of 10 Pieces, Black

Pinhead - Materials: precision forged cro-mo steel. Lock nuts installed weight: 52g. Easy, one-time installation. Protection for: both wheels & seat post. Replaces your existing lock nuts and seat post clamp.
BrandPinhead
ManufacturerPinhead
Height5 cm (1.97 Inches)
Length10 cm (3.94 Inches)
Weight0.08 kg (0.18 Pounds)
Width10 cm (3.94 Inches)
Part NumberG5
ModelG5
WarrantyLimited lifetime.

9. Pinhead

One Size, Set of 23 Pieces, Black, Pinhead 133 City Lock Ultimate Bicycle Set

Pinhead - Online lost key replacement available for keys registered with Pinhead. Protection for: Your whole bike including frame, both wheels and seat post.

Materials: precision forged Cro-Mo steel and aircraft grade aluminium alloy. The complete anti-theft system for your whole bike. One key to lock and unlock your wheels, seat post and headset. Replaces your existing quick release skewers, seat post clamp and headset top cap. Skewer length: 125mm front / 168mm rear. Easy, one-time installation. Nylon cover on the City lock prevents damage to your frame. City lock shackle dimensions: 151mm x 72mm inside / 187mm x 105mm outside / 40mm x 14mm anti-bolt cutter cross-section.
BrandPinhead
ManufacturerPinhead
Height2 cm (0.79 Inches)
Length15 cm (5.91 Inches)
Weight0.88 kg (1.95 Pounds)
Width2 cm (0.79 Inches)
Part NumberB3
ModelB3
WarrantyLimited lifetime.