Problem Solvers Chain Spy
Best simple tool for accurate bicycle chain wear detection.
This simple, effective guard eliminates the anxiety of dropped chains during aggressive shifts or rough terrain. It’s a set-it-and-forget-it insurance policy for your drivetrain, though you’ll need to confirm your frame’s mounting style—clamp or direct mount—before committing to the install.
$34.99
Who it's for
- Cyclists who want to extend the life of their bike's drivetrain components.
- Bike owners seeking an easy, reliable way to monitor chain wear.
- Riders prioritizing optimal shifting performance and drivetrain efficiency.
Who should skip it
- Mechanics or riders preferring multi-functional tools for their workshop.
- Casual riders who might forget routine maintenance checks.
- New cyclists or those on a tight budget for bike accessories.
Performance breakdown
Chain retention reliability
Effectively eliminates dropped chains during aggressive shifting and rough terrain.
Installation versatility
Clamp options are straightforward, though direct mount requires specific, separate adapters.
Build durability
Robust construction withstands the constant vibration and stress of drivetrain operation.
Weight penalty
Minimalist design adds negligible weight to your overall bike setup.
Compatibility range
Limited to specific clamp sizes and direct mount frame standards.
Adjustment precision
Allows for fine-tuned positioning to perfectly align with your chainring.
Key Specs
Mounting Type
31.8mm clamp (with shims for 28.6mm)
Mounting Type
Direct Mount (requires separate adapter)
Part Number
CH0905
UPC
708752095236
Application Area
Drivetrain
WARNING
Cancer and Reproductive Harm (California Prop 65)
Know before you buy
Still have a question?
Ask Metto anything about the Problem Solvers Chain Spy before you decide.
