iruka S
8-speed + Sport spec
$2,099.00
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Features
Gear system
Internal 8-speed
Traveling distance per pedal rotation
Riding posture
Sporty ● ● ● Relaxed
Riding feeling
Agile ● ● ● Mild
Specs
Frame material
Surface finish
A6061 aluminum
Sandblasting and anodizing
Components
Gear box
Tire
Wheel set
SHIMANO Alfine 8s
SCHWALBE Kojak 18 x 1.25
ALEXRIMS DM24 Double wall F28H/ R32H
Crank set
Bottom bracket
SHUN iruka original 56T L170mm
NECO iruka original (Shell-width 73mm Axle-length 139mm)
Brake caliper
Brake lever
Shifter
Saddle
Head set
Accompany
-ing items
PROMAX DSK300/420
PROMAX XL91G
SHIMANO Alfine Rapid Fire Plus
VELO VL3381
NECO H50HBK integral 1-1/8
Rear-wheel cover, coupler, reflector and bell
Geometry
Folded size
Wheel base
Total length
Saddle height
Handlebar height
W78cm x H48cm x D35cm
1,040mm
1,470mm
720 - 950mm
880 - 970mm
Front-center distance
630mm
Rear-center distance
420mm
Reach
470mm (Horizontal distance between the centers of BB and head tube)
BB height
275mm
Weight
11.9kg without pedals
A transformer.
iruka is a transformer bicycle which changes its form into four modes to suit the scene. No tools are required to fold or unfold. Expand your mobility with the touch of a hand.
It’s a breeze.
Small wheels don’t mean a small ride. iruka’s 18-inch wheels propel you one and half times more than your average single speed commuter bicycle with a single pedal rotation in top gear. Precise gear ratio settings, a high rigidity frame that efficiently converts pedaling force to propulsive force, and a stable geometric design that ensures stability at high speed.
Optimized to be zippy.
Agility and flexibility are key when riding in cities, as well as speed. But with iruka you needn’t worry. The 18-inch wheels handles frequent starts-and-stops well, the Shimano internal geared hubs make it highly-capable for high-speed cruising or steep climbing, and the small rotor disc brake operates efficiently and effectively.
Compact. For impact.
iruka can be folded 30% smaller than ordinary folding bikes(*1). The perfect rectangular folded shape fits in a car trunk, on a train seat, under your desk, or any other space. And it easily fits a narrower space when stored vertically(*2).
*1 W78cm x H48cm x D35cm Compared to a 20-inch folding bike’s volume (W x H x D)
*2 It’s not standable when putting vertically.
Walk it. Roll it.
You may be thinking, even compact folded bikes are a pain to carry. And you’d be right. Except with iruka. Its front and rear wheels fold parallel and coaxially, which allows you to roll iruka like a carry cart. So metro concourses, airport terminals, and office hallways are no problem. iruka can go wherever you go. Now, where do you want to go?
Park smart.
Missing the kickstand? No problem. When you fold in iruka’s rear wheel, it acts like a kickstand. It becomes 2/3 its overall length, so you only need half the parking space of ordinary bicycles.
Strength + Beauty
In order to achieve the distinct aesthetic of the iruka frame, we began by creating metal molds for nearly all the frame components. For the frame, we selected 6061 aluminum alloy for its strength and light weight, to achieve an excellent balance between eye-catching beauty and strength that passes the EN/JIS Standard Strength Test*.
* Frame fatigue test with a vertical force (EN4.8.6), Impact test (Falling mass) (EN4.8.2), Impact test (Falling frame) (EN4.8.3)