Pinhead Seatpost or Saddle Lock
Best security upgrade for urban cyclists protecting expensive bike components.
A specialized security solution designed to keep vulnerable bike components firmly in place. It replaces standard quick-release hardware with a proprietary locking system, ensuring that expensive saddles and seatposts stay with the frame rather than walking away with a thief.
$69.99
at
Summit Bicycles
Who it's for
- Urban cyclists protecting high-end saddles from opportunistic street theft
- All-weather commuters who leave their bikes locked outside daily
- Weight-conscious riders seeking a streamlined alternative to heavy secondary locks
Who should skip it
- Forgetful riders who struggle to manage small, specialized tools
- Owners of non-standard frames requiring specific proprietary hardware
- Budget-conscious cyclists looking for a simple, low-cost security solution
Performance breakdown
Theft Deterrence
Proprietary key system effectively stops opportunistic thieves from snatching your saddle.
Installation Simplicity
Straightforward bolt replacement, though vertical orientation requirements limit some frame setups.
Build Durability
Rugged metal construction withstands harsh weather and daily urban abuse.
Key Security
Unique coding makes unauthorized key duplication nearly impossible for casual thieves.
Compatibility Range
Versatile sizing options cover the vast majority of standard seatpost diameters.
Weight Penalty
Minimal added mass is a fair trade for permanent component security.
Key Specs
Weight
41g
Color
Black
Lock Type
Seatpost and Saddle Lock
Compatibility
Universal fit for all frame and seatpost sizes
Seatpost Compatibility
27.2mm, 30.9mm, 31.6mm
Seat Tube Compatibility
28.6mm, 31.8mm, 34.9mm
Locking Mechanism
Uniquely keyed QR pattern
Material
Metal
Key Type
QR
Mounting Method
Bolt replacement
Know before you buy
Still have a question?
Ask Metto anything about the Pinhead Seatpost or Saddle Lock before you decide.
