Please note that orders sent to outside the UK will likely be subject to customs charges and taxes and, it seems at the moment, will be delayed beyond the normal expected delivery time of one week - possibly up to one month..
Zig Zag Mudflap
£5.99 – £20.99
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• A front, a back or a pair of flaps in the sizes selected above
• 2 x silver stainless steel (or nylon) screws, nuts and washers for each flap (silver, black or none as specified)
• 2 x black nylon snap rivets for each flap
• Installation instructions - also available here
The flaps now come in a lot of different sizes, which are grouped into front and back, although not all products are available in all sizes: :
Most products have a sizing calculator to help you find the right size based on your mudguards and protection preference. However, here is some brief information on the reason for and suitability of these shapes.
Although they are called front and back, they don't have to be used in those positions. The mostly cone shaped, shorter "front" flaps are designed to catch water over a wider horizontal area and help protect your feet. They are also wider at the top than the back flaps so that when attached they take on the curve of the mudguard and are more rigid. The "back" flaps are narrow at the top (bottle shaped) so they are deliberately less rigid when attached and won't break or distort your mudguard if it gets bent backwards. There is also a longer cone shaped flaps (not available in all designs) which is standard width and can be used at the front or back.
If this product doesn't have a sizing calculator then the following information will help you find the right size flaps.
Your Choice of flap width should be based on the width of your mudguards. It's the width at the top of the flap that varies to suit different width mudguards. The measurements ranges in the table below are for the width straight across from edge to edge (not around the inside of the guard), which is often quoted by the mudguard manufacturers as the width of the guard.
|Mudguard Width||Front Flap||Back Flap||Example Mudguards|
|less than 35mm||Narrow||Narrow, Standard or Long||e.g. PDW Narrow 30mm|
|35-45mm||Standard or Long||Standard, Cone Shaped or Long||e.g. SKS Race Blade (use long back), Chromoplastic 35mm, Bluemel 35mm|
|45-55mm||Wide||Wide or Long||e.g. SKS Chromoplastic 45mm, Bluemel 45mm|
|more than 55mm||Extra Wide||Extra Wide|
Back flaps are designed to work with mudguards that come half way down your back wheel i.e. finish at the same level as the hub. For shorter mudguards such as SKS Race Blades, there is the Long back flap, which is 5cm longer than the standard length.
To decide on your back flap length you should measure the distance from the end of your flap to the floor (as in the bike diagram below) and refer to this table (which is based on a 700c wheel with 25mm tyre):
|End of flap to floor||Back Flap to Buy||Effective Flap Length||Example Mudguards|
|less than 380mm||Standard, Narrow, Wide or Cone||198mm or 218mm||Full length mudguard that comes half way down the back wheel.|
|380mm or more||Long||248mm||SKS Race Blade|