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Folding Bike With Big Wheels

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Posted September 3, 2015

Helix is a new folding bike that has big wheels so it looks, rides and feels like a normal bike, but can fold incredibly small. It has a titanium frame, high end components and will be made in Toronto, Canada. Helix folds down to the size of its wheels:

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Sizing and Geometry

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A) Seat tube length: 338 mm / 13.3 in
B) Effective top tube length: 590 mm / 23.2 in
C) Actual top tube length: 590 mm / 23.2 in
D) Head angle: 73 deg
E) Seat tube angle: 77 deg
F) Standover height (centre): 671 mm / 26.4 in
G) Head tube length: 100 mm / 3.9 in
H) Wheelbase: 1066 mm / 42 in
I) Chainstay length: 411 mm / 16.2 in
J) Bottom bracket height: 308 mm / 12.1 in
K) Trail: 70 mm / 2.8 in
L) Frame reach: 435 mm / 17.1 in
M) Frame stack: 672 mm / 26.5 in
N) Handlebar height: 980 mm / 38.6 in
O) Seat post height to pedal spindle: 882 mm / 34.7 in max | 580 mm / 22.8 in min

Specs

Every component was carefully chosen for it’s weight, reliability and innovative features. Even the screws and nuts are either stainless steel, aluminum or titanium. All specs:

  • Frame, fork and swingarm: 3Al-2.5V CWSR titanium
  • Headset: TBA (Internal, press-fit cup)
  • Stem: Helix (31.8mm bar diameter, 35mm reach)
  • Handlebar: TBA (31.8mm clamp diameter, 580mm width)
  • Brake Levers: TBA
  • Cables: Internally Routed
  • Crankset: SRAM S350-1 (GXP, 165mm crank arms, 38t)
  • Seatpost: Helix (350mm)
  • Saddle: Fabric Scoop Elite Radius (142 x 282)
  • Seatclamp: Helix
  • Brake Calipers: TRP Spyre
  • Brake Rotors: Shimano SLX Front RT66, Rear RT67 (160mm)
  • Front Hub: (32h) TBA
  • Rims: TBA
  • Tires: Kenda Kwest 24″ x 1.5″ (ETRTO 40-507)
  • Maximum Weight Limit: 250 lbs (113 kg)
  • Recommended rider height range: 4’7″ – 6’4″
  • Folded Dimensions: 23″ x 26″ x 9.5″

 

The project campaign is fully funded on the Kickstarter and reached its funding goal of $120.000 CAD, the price for single speed bike is $119, an estimated delivery is on Mar of 2016.

 

 

Source: Kickstarter 

 

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