Orange Four RS 27.5" Mountain Bike 2019 - Trail Full Suspension MTB
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 than 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.
Key Features:
- Frame Handbuilt in Britain
- Short travel, fast and agile 27.5 trail bike with progressive geometry
- Longer top tube 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
Occasionally, without notice, manufacturers change product design and/or specifications.
Four Sizing
See the table below to find the right size GT Four.
Size |
Feet and inches |
S |
5’ 4” – 5’ 7” |
M |
5’ 6” – 5’ 10” |
L |
5’ 9” – 6’ 1” |
XL |
6’ 0” – 6’ 5” |
Read our bike size guide for more information on sizing.
Four Geometry
|
S |
M |
L |
XL |
Seat Tube Length |
15” |
17” |
18” |
20” |
Head Angle |
67 |
67 |
67 |
67 |
Seat Angle (Actual) |
72 |
72 |
72 |
72 |
Seat Angle (Effective) |
74 |
74 |
74 |
74 |
Top Tube |
572 |
579 |
598 |
618 |
Top Tube (Effective) |
590 |
610 |
630 |
650 |
BB Height (from ground) |
330 |
330 |
330 |
330 |
BB Height (from axles) |
-25 |
-25 |
-25 |
-25 |
Chainstay |
424 |
424 |
424 |
424 |
Head Tube |
100 |
110 |
110 |
130 |
Wheelbase |
1132 |
1153 |
1173 |
1196 |
Reach |
421 |
438 |
458 |
473 |
Stack |
588 |
598 |
598 |
616 |
Standover |
590 |
730 |
744 |
783 |
Read our Mountain Bike Geometry Explained guide for more information on MTB geometry.
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