Fullsized Bike, ultra-protable
Full sized wheel behind super compact Brompton.
This shows that full-sized wheels are compact enough.
If the whole frame could fit inside a these wheels it would be a round smooth package - BUT as it would then be low down, and it would still need to be lifted and carried - unless, it had a handle to roll it ............
Just like luggage
Early Sketch (1 of 100's) - exploring frame, mechanism and construction concepts
Early CAD Animation - LH Concept
1/10th Scale Sketch Model
Movie of the Sketch Model, used along with CAD to develop the 3D 4bar Link mechanism
Full sized Sketch Model
Slow Motion CAD folding sequence, showing one version of the patented mechanism
CAD rendering - IF Mode concept
27 Gear hard tail version
Simple Stand Concepts
Rack, Stand, Fender (mudguard) Concepts
Early, Pre - IF Mode CNC'd parts for prototype
Early, 3D 4 bar link mechanism prototype
Mark testing early IF Mode
Andrew Testing IF Mode
Testing IF Mode (a tough job that someone has to do !)
Typical target use
Patented, 3-Dimensional, 4 bar-Link, with tensioned link and tension rods (as used in IF Urban, Cross & IF Reach).
This mechanism is the 2nd development as a lower cost version for more conventional frames.
3D - 4Bar link bearings
Early CAD animation - IF Urban mechanism - based on IF Mode with conventional frame and components.
Never carry - roll (on 700c full sized wheels). Folded IF-Urban & Cross concept
Early CAD concept drawing - IF Urban700c
Prototype - mechanism being added to conventional frame
Close up of Prototype Parts
Prototype Stem Parts
Early IF Urban Folding Frame
Compact Full-sized frame next to benchmark Brompton (excellent 16" wheel folding bike)
All parts between handle & wheels - this gives minimum envelope, and puts a handle in the best position to roll the bike. ie "a wheel + a handle"
Early Prototype, with special wheels
Josh Testing early frame
Josh testing ( v rough and v steep)
Stop after the climb - before the fun downhill. Testing a folding bike as a folding mountain bike.
Group ride - & testing
IF Urban700c Prototype 21lbs/10Kg
IF Technology is developed, by Pacific-Cycles - Master Bicycle Engineers - and IF Patent owners