Tire clearance decides which mudguard fits, not the wheel size alone
Mudguards fail to fit for one reason more than any other: clearance. A guard sized to a 28-inch wheel still fouls a wide tire, so the number that matters is the tire width in millimeters the guard is stated to clear, not the wheel diameter. We compare that clearance, full-length guards with stays against clip-on guards that need no eyelets, kickstand mounting (chainstay plate against rear-axle clamp), and the loudness manufacturers state for bells in decibels.
35 mm (1.38 in) dome · to 100 dB · 21.8 and 28 mm (1.10 in) bars · 360° rotating
A 35 mm (1.38 in) mini bell stated at up to 100 dB, fitting 21.8 and 28 mm (1.10 in) bars with supplied rubber inserts, in rustproof steel.
Best for: A bell for a city bike, where the requirement is to have one and be heard.
≈ $42
Front and rear · 24–29 inch · clip-on, no eyelets needed
A front and rear mudguard set for 24 to 29 inch mountain bike wheels, mounting without frame eyelets.
Best for: Mountain bikes and gravel bikes with no mudguard eyelets, where some coverage beats none.
Aluminum with plastic foot · chainstay mount · rear-mounted
A rear chainstay-mounted kickstand in aluminum with a plastic foot, from a German component brand.
Best for: A commuter or touring bike that carries luggage and needs to stand up on its own.
2 bells · 100 dB · aluminum alloy and ABS · stainless striker
A pair of compact aluminum alloy bells stated at 100 dB, with a thicker stainless steel striker and a design intended to take up almost no bar space.
Best for: Households with two bikes, or anyone who wants a bell that does not dominate the handlebar.
28 inch set · front and rear · gravel and road · made in Germany
A 28-inch mudguard set from a specialist German manufacturer, aimed at gravel and road bikes and sold as a complete front and rear set.
Best for: Gravel and road bikes ridden through winter, where guard quality shows up over a season.
≈ $86
Mudguards, a stand and a bell turn a sports bike into one usable every day. It is a set, not three accessories.
A bell is compulsory and costs a few euros. It is the first accessory to fit on a city bike.
A forty-five-millimeter mudguard over a fifty-millimeter tire rubs at every bump. The stated width is compared with the fitted tire, plus a few millimeters of clearance.
An audible warning device is required by the highway code. It is the cheapest piece of equipment and the one most often missing.
They protect the rider from the direct spray and let everything through onto the frame and the rider behind. Full mudguards are another matter.
Quick-release or clamp-on models exist for that. The adjustment is less stable and wants checking regularly.
A center stand clamps the chainstays, which is inadvisable on some frames. Mounting on the rear dropout avoids that clamping.
Adjust the stays and center them on the wheel. A mudguard that rubs eventually cracks at the contact point.
It protects the rider behind you as much as yourself. In a group it is a matter of courtesy as much as comfort.
It carries further in traffic. Close up, your voice is often more effective and less aggressive.
A center stand clamps the chainstay, and over-tightening marks a thin aluminum frame or cracks a carbon one. The mounting points provided by the maker are the only safe fitting.
An audible warning device is required by the highway code, and it is the piece of equipment most often missing. Short mudguards only stop the direct spray, a center stand clamps the chainstays — inadvisable on some frames — and a mudguard that rubs eventually cracks.
There is no table here, and the reason is in the listings. The figure published most often across these 5 products is coverage, given by 2 of them — short of the four in five a column needs to compare rather than to display gaps. Each product page says what its own maker published.
Specifications: manufacturer sheets for bike gear and the matching Amazon product pages. Prices and availability: Keepa.
Most recent revision in this category: August 30, 2026.
