Orange Mountain Bikes - ST4 Pro Spec Sheet
From the 2011 Archive
The ST4 may take the name of the old, but it’s all new, a veritable conglomerate of design made to continue our own inimitable niche. The original brought responsive trail handling to a bike designed for regular XC. A low slung trail missile which pedaled efficiently and descended with a rapidity that astounded the most fervent critic. A bike that doesn’t fit a category, but creates one.
Built for all-day missions, the ST4 uses a low leverage ratio to produce 110mm of buttery smooth travel. Rather than use a shorter 165 mm shock the ST4 takes a lesson from the blood, running a 190mm custom tuned Fox RP23 shock to give 100mm perfectly controlled progressive travel driven through single pivot linkage actuated design. The geometry that made the original a classic, but updated to markedly stiffen the chassis laterally and incorporate linkage development from the Strange department.
If you want to redefine the rules of XC, the ST4 starts afresh. It might not fit the existing industry tags, but it’s built for the way most of us ride. Up, down and along, the ST4 is the remedy to your bike pondering woes. Just get on and ride, the ST4 does the rest.
Why the ST4 Pro?
The ST4 is that unusual bike which doesn’t masquerade as anything other than a sweet handling XC bike. No modern tag terms, just a fantastic bike built for all-day rides and the rolling trails we love to ride at home. If you want more travel, look at the Five, less travel, consider a hardtail.
Read the reviews for the ST4...
ST4 Pro Specifications
|Tubeset||Moulded and Formed 6061-T6/ Custom Butted Aluminium Tube|
|Rear Shock||Fox Float RP23 XV|
|Swing Arm||QR Axle|
|Forks||Fox 32 F-RL 120mm QR15|
|Front Mech||Shimano SLX|
|Rear Mech||Shimano XT Shadow 10 sp|
|Shifters||Shimano SLX R Fire +|
|Brakes||Hope Tech X2 183/160|
|Bottom Bracket||Shimano SM51 Hollow Tech 2|
|Crankset||Shimano SLX (3 x 10sp)|
|Hubs||Hope Pro 2|
|Spokes||DT Swiss Competition|
|Tyres||Maxxis Advantage 2.25|
|Stem||Race Face Ride XC|
|Handlebars||Race Face Ride XC|
|Saddle||SDG Bel Air|
|Seat Post||Stick Up|
|Moulded and Formed 6061-T6/Custom Butted Aluminium Tube|
|A. Head Angle||68°||68°||68°|
|B. Seat Angle||74°||74°||74°|
|C. Top Tube||556||576||599|
|D. Effective TT||580||600||620|
|E. BB Height||329||329||329|
|G. Head Tube||120||120||120|
|T. Rear Travel||110||110||110|
|Seat Tube Ø||27.2||27.2||27.2|
|Unless otherwise indicated all measurements are in mm.
Frame angles are measured static, without rider sag.
Bottom bracket height measured from ground with 670mm ø tyre.
Prices and Specifications are liable to change without notice.