2013 World Championship competitor
BuilderMark van der Kwaak & Aad Heemskerk
OwnerMark van der Kwaak
Countryflag nl Netherlands
Bike NameCadbike 33b
Engine Make/SizeBMW R90S with handmade covers
DrivetrainBMW R90S with homemade topcover
Frame Make/Type20% BMW 80% DBBP
Front EndShortened Springer
Rake35 degrees
Stretch8 cm
Wheels Front16" /80 spokes / homemade hub and spokes
Wheels Rear16" /80 spokes / homemade hub and spokes
Tires Front16" Firestone Deluxe
Tires Rear16" Firestone Deluxe
Brakes FrontCompletely built from scratch except the shoes
Brakes RearModified BMW
PainterGL Paints / Paul Funk
Chroming/PlatingNickel plating by Mark
Additional InfoSeat design by Mark, upholstery Paul Funk; Frame welding by Ronnie Breuer; Stainless steel parts designed by Mark and built by Aad: - pipes, midcontrols, centerstand, handlebars with internal throttle, brake & clutchcables; Battery cover home casting by Mark & Aad; Battery AntiGravity strong enough for electric start.

Home-made intake manifolds for Stromberg 97 carbs, design Mark, built by Aad; Carbs are operated by stainless linkage instead of cables; Fender design Mark, made by Ben's Metalshaping; Taillight design by Mark, made by Crime Scene Choppers; Handgrips from old Indian; Tank is heavily modified Superglide; Headlight from swapmeet, origin unknown; Electrical, mostly hidden under engine cover

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Photography courtesy of Onno Wieringa


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