The weight penalty is worth the extra flat protection when you need it

Designed with the same features found on the adult helmets

titanium-reinforced hexagonal links to protect against hacksaws and boltcutters and the tight inside link dimensions protect against prying

Cons: Will need an adapter for the smaller style Shimano bottom brackets

and clamp it at both ends

Cleanskin Pro Chain Breaker Tool 6-12 Speed Dangerous Goods The weight penalty is worthThe Cleanskin Pro Chain Breaker Tool is a high quality 6 12 speed compatible chain tool that is a great addition to any home mechanics workshop. Features: Compatible with 6 to 12 speed chains and single speed chains. Both 3 32" & 3 16" Comfortable handle for safe operation