Mudguard against splash waterWith these tips, installation is always a success

Matthias Borchers

 · 27.11.2022

Professionals never ride with a mudguard, although it wouldn't help in this situation anyway
Photo: Getty Velo
Profis fahren nie mit Schutzblech, wobei es in dieser Situation eh nicht helfen würde
Even the best rain gear will not protect you from wetness from below in the long term. Only solid mudguards offer the best protection against water bombardment from the tyres. These can be fitted to a road or gravel bike in a few simple steps, even by non-professionals. It can be tricky in some places, but with our tips and tricks it always works!

1. the correct width of the mudguard

The mudguard should be a few millimetres wider than the tyrePhoto: Matthias BorchersThe mudguard should be a few millimetres wider than the tyre

As a rule of thumb for the appropriate width of a mudguard, we recommend half a centimetre overhang at both edges. For 28-millimetre tyres, the mudguard should therefore be around 38 millimetres wide. At the same time, care must be taken to ensure that the mudguards still fit through the struts or fork.

2. check fastening points

There must be space between the mudguard and the brake bridge of the chainstaysPhoto: Matthias BorchersThere must be space between the mudguard and the brake bridge of the chainstays

Before buying mudguards, you should take a close look at your road bike with regard to possible mounting points. Gravel bikes in particular now have the appropriate mounting eyelets, but they are not always in the right place.

3. keep your distance

A finger's breadth of space is needed to prevent stones and sticks from jammingPhoto: Matthias BorchersA finger's breadth of space is needed to prevent stones and sticks from jamming

The mudguards should be at least one centimetre away from the tyre, especially if the tread pattern is chunky, so that stones or sticks thrown up or stuck in the tread cannot get stuck.

4. use protective film

Small protective films prevent scratches on sensitive paintworkPhoto: Matthias BorchersSmall protective films prevent scratches on sensitive paintwork
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A protective film is included with many mudguards for quick mounting. This should be placed between the mudguard and the frame to protect the paintwork.

5. suitable tools for mounting the mudguard

Protruding wire struts are best shortened with side cutters or pliersPhoto: Matthias BorchersProtruding wire struts are best shortened with side cutters or pliers

With fixed mudguards, the struts may need to be shortened using bolt cutters, pliers or a hacksaw. Caution: To avoid unpleasant surprises, however, the struts should only be shortened after the mudguards have been permanently fitted and the tyre clearance has been checked. Otherwise they may no longer be able to be attached to the frame. Special plastic caps protect against sharp edges.

6. extend the splash guard from the mudguard

tour/Detail_Festmontage_baec2ddcf4d66d1eb97ec7a9ba00e361Photo: Matthias Borchers

A mud flap helps to increase the moisture protection on the front wheel. This can be cut from an old tyre of the appropriate width, for example, and attached with cable ties through overlapping holes in the tyre and mudguard. The closer the home-made mud flap is to the ground - without dragging - the drier your feet will stay.

Matthias Borchers is an expert for clothing and accessories in the test department of TOUR. As an amateur cyclist, he has completed the TOUR-Transalp and the TOUR-Trans Austria. His reportage trips from San Francisco to Sakai and 17 trips to the Tour de France with around 30,000 motorhome kilometres are also formative.

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