BMW K bikes (Bricks)

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MartinW

MartinW
Life time member
Life time member
I posted this on another site quite a few years ago Feb 2016. Don't pay through the nose for an Extenda Fenda. Mine cost me 90c, made a card board template of the desired shape and size. Using the template I cut out the mudflap out of a 90c black plastic bucket, attach the mudflap with 3 X 4mm aluminium mushroom head Allen screws. Make sure the screws clear the tyre. You don't have to use black, buckets come in various colours. The reason for using a bucket is it is already curved, but you could use anything flat and use a Heat Gun to form it. You can get 4-5 bucket flaps and a dog dish out of one bucket. You can even put an upturned edge using a former ( 1/2" Breaker bar) and a heat gun.
Regards Martin.
Extender Fenda Bucket Flap for under $1.00 Bucket10
Extender Fenda Bucket Flap for under $1.00 Bucket10
Extender Fenda Bucket Flap for under $1.00 Bucket11

Extended Length Mk2 version.
Extender Fenda Bucket Flap for under $1.00 Bucket12
Prototype Upturned Edge Version


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K75s Hybrid
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
A satisfied customer here.  I have two 16Valve K100's with dollar store bucket mudguard extenders.  THey work great.

Extender Fenda Bucket Flap for under $1.00 Dscn1713



Last edited by Point-Seven-five on Tue Jun 01, 2021 10:33 pm; edited 1 time in total


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Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

RS Rider

RS Rider
active member
active member
This is now on my bucket list. Very Happy

    

MikeyD

MikeyD
active member
active member
That's a cool idea to use a pre-curved piece of plastic stock! I also like the idea of custom mud flap extenders since I live in a rain forest and there is usually debris on the wet roads. The extenders keep my engine front free from debris and may help to keep my shoes drier. Plus the custom ones cost less and can be tailored to my preference. The fanciest one I made was from stainless steel sheet metal, kind of a pain to cut curves in.

After trying various materials bolted through my fenders on a variety of bikes, and one or two failed purchases of extenda-fenders when I discovered they didn't fit my application after I received them, I went for another solution using 1/8" neoprene gasket material.

Like Martin, I also used a cardboard template I shaped and adjusted to my preference. After cutting the neoprene to the template, I fixed it to the fender using 3M Fast Tack Trim Adhesive (I've had it for a while and they may have a different name for the product now). The adhesive has proven durable and it doesn't commit me or anyone else to holes in my stock fenders. If anyone wants it removed some solvent can un-tack the adhesive.

Mikey DExtender Fenda Bucket Flap for under $1.00 20191110
Extender Fenda Bucket Flap for under $1.00 20191112
Extender Fenda Bucket Flap for under $1.00 20191111


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1985 K100RT (0052390), 1985 K100 (0030066), 2003 K1200GT (ZK01448), 1984 R65, 1984 R80ST, 1974 R90/6, 1976 R90/6, 1997 R850R, 1991 Honda CB250, 1998 Sportster 883
    

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