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Product family
Guardian
Product type
Permanently mounted motorcycle lock
Lock type
Brake caliper mounted disc lock
Mounting type
Permanent
Mounting side
Right
Brake caliper type
Radial
Caliper bolt spacing
108 mm
Locking method
Removable spring-loaded LockPin
Wheel immobilisation
Yes
Audible lock confirmation
Yes – CLICK
Security certification
ART4
ART approval number
4362
LockPin weight
77 g
Number of keys
2
Security Card included
Yes
Dust protection
DustPlug + DustCap
Spacer kit included
Yes
Mounting bolts included
Yes
Warranty
Lifetime Limited Warranty
Remains installed while riding
Yes
Separate lock storage required
No
Locks through brake disc
Yes
Requires removal before riding
LockPin only
Suitable for centre stand use
Yes
Installation location
Front brake caliper
Installation required
Yes
Bennetts BikeSocial Recommended
https://www.bennetts.co.uk/bikesocial/reviews/products/security/motorcycle-chains-and-locks/lock-works-guardian-review-disc-lock

Lock Works Guardian GR108 Green

The Lock Works Guardian GR108 is perfect primarily for Japanese motorcycles with 108 mm bolt spacing, such as Yamaha, Kawasaki, Suzuki, and more. Specifically designed for popular Japanese naked bikes, supersports, and all-rounders that dominate the roads. With the GR108, you benefit from the same Lock Works technology: spring-loaded LockPin, ART4 certification, lifetime warranty. Perfectly tailored to the geometry of Japanese brake calipers. Always with you, always ready, for every quick stop on the go.


The Guardian GR108 is specifically designed for radial brake calipers with a 108 mm centre-to-centre bolt distance on the right side. Using the included spacers, you can precisely adjust the fit to your brake caliper, ensuring the wheel is completely locked without any play. The matte green finish gives your motorcycle a sleek, premium look that perfectly complements modern bikes.

What's in the box

  • Lock Works Guardian, anodized green
  • LockPin
  • 2 keys
  • Security Card
  • Mounting bolts, stainless steel
    • M10x80x1.25
    • M10x90x1.25
    • M10x100x1.25
  • Spacer set, anodized black
  • DustPlug with Dustcap
  • Installation manual
  • Availability: In Stock
  • € 249.99

  • For motorcycles with radial front brake calipers.
  • Bolt spacing: 108 mm centre-to-centre.
  • Mounting position: right brake caliper (GR108).
  • Always check compatibility using the Lock Works fitting guide before ordering.
Available colours


  • ART 4362
  • Sold Secure Diamond
  • Bennetts BikeSocial Tested - Recommended