Product: Crankset Protective Cover — fits 42T chainrings, 4hole (3 mm) Key benefits Protects the chainring and chain from scratches and minor impacts to keep components looking and functioning better. Simple, reliable installation with included plastic screws — no special tools required. Universal fit for 42tooth chainrings with the specified pitch and hole pattern, so you can check compatibility quickly before buying. Important specifications Chainring teeth: 42T Pitch: 9.7–10.7 cm (3.82'–4.21') Mounting holes: 4 holes Hole diameter: 3 mm (0.12') Mounting hardware: plastic screws included Why customers need this Prevents cosmetic and edge damage to the chainring during normal use, transport, or storage. Keeps the chainring protected without altering drivetrain performance or requiring mechanical changes. Easy, repeatable installation means you can add or remove the cover when servicing the bike. Easy installation Align the cover with the 4 mounting holes on a 42T chainring. Insert and tighten the provided plastic screws until secure. Hand tools are usually sufficient. No special tools or modifications to the crankset are required. Practical use scenarios Daily commuter: Protects the chainring from scratches from racks, clothing, or close contact during storage or transit. Maintenance and transport: Keeps the chainring protected when packing the bike in a car, trunk, or bike bag. Casual trail or gravel rides: Provides an added layer of protection against incidental impacts and knocks without interfering with normal pedaling. What to check before Confirm your chainring is a 42tooth ring. Verify the bolt pattern matches 4 holes with 3 mm hole diameters and the pitch falls within 9.7–10.7 cm (3.82'–4.21'). Contents 1 crankset protective cover sized for 42T chainrings Plastic screws for mounting This protector cover is a straightforward, practical addition to any bike with a 42T chainring that needs simple protection from scratches and everyday wear.