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Orange Bikes

F19FOURF-S-JEBK

Orange Four Frame

With the Four we have gone all out to build the lightest, toughest short-travel trail bike we could conceive.

With shorter travel we get less frame stress, so we lightened the gauge of the 6061 aluminium frame material. Extra machine processes shaved weight from all the CNCed parts while maintaining their crucial strength. A new split-rear compact swingarm gives us a shorter chain stay and by tucking in a 44x184mm shock we moved the single-pivot point rearwards to make the suspension more active everywhere. 

Sitting below the bigger hitting trail burners of the Five and Alpine 6, but vastly more capable that the XC lightweights. The Four is Orange to the core: simple, reliable and built to perform at the highest level, out and back. 

It climbs like a Welsh mountain goat and descends like a demon leaving smiles as big as we’ve had on any Orange bike.
Boxes ticked, the Four was born.

Why the Four?

  • Frame Handbuilt in Britain
  • Short travel, fast and agile 27.5 trail bike with progressive geometry
  • Longer toptube and wheelbase for high-speed stability
  • Compact swingarm with 12x148mm Boost rear hub spacing for precise handling
  • Tuned pivot position for optimal suspension performance with 184x44mm rear shock
  • Suspension travel: 130mm front & 120mm rear
  • 5 year frame warranty​
Frame Specification
Tubeset 6061-T6 Monocoque UK Formed Custom Aluminium Tubing
Rear Shock Fox Float DPS Performance 184 x 44mm
Rear Axle Bolt Type Allen Key Head (Boost 148mm Hub)
Seat Clamp Strange QR

Frame Size Small Medium Large X Large
Rider Height Guidance* 5'4" to 5'7" 5'6" to 5'10" 5'9" to 6'1" 6'0" to 6'5"
Seat Tube Length 15" 17" 18" 20"
A. Head Angle 67° 67° 67° 67°
B. Seat Angle Actual 72° 72° 72° 72°
B. Seat Angle Effective 74° 74° 74° 74°
C. Top Tube 572 579 598 618
D. Top Tube (effective) 590 610 630 650
E. BB Height (from ground) 330 330 330 330
BB height (from axles -25 -25 -25 -25
F. Chainstay 424 424 424 424
G. Head Tube 100 110 110 130
H. Wheel base 1132 1153 1173 1196
T. Rear Travel 120 120 120 120
J. Reach 421 438 458 473
K. Stack 588 598 598 616
Standover 690 730 744 783
Unless otherwise indicated all measurements are in mm. Frame angles are measured static, without rider sag. Bottom bracket height from ground is with 710 mm Ø tyre.
*This is for guidance only. You may be taller or shorter, it doesn't mean our bikes will not fit you.


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