Presenting the scw 1
Enduro carbon full linkage chassis

150+ travel front and rear.

The most significant evolution in mountain bike chassis design since rear suspension.

The Structure Cycleworks SCW1 is a 27.5” wheeled, full carbon, full suspension, enduro bike built on the most advanced mountain bike chassis in the world. The SCW1 has 150mm of travel at both front and rear. However, due to reduced brake dive - which leaves more suspension travel available for bump handling - the SCW1’s Without Telescoping Fork (WTF) linkage suspension system rides as though it has travel in excess of 180mm. From enduro racers to weekend warriors a confidence inspiring bicycle that makes your ride faster and more enjoyable. Read on and discover how this design solves current suspension problems to increase your confidence and control in all conditions.

The WTF front suspension platform solves performance issues inherent to all telescopic suspension forks.

StabilityHead angle slackens throughout travel, with 40% less brake dive, increased trail, and nearly constant front-center early in suspension travel. 
SensitivityThe WTF linkage rotates on 30 mm cartridge bearings and isolates the shock from bending loads, allowing the system to move with minimal friction over bumps large and small with unprecedented control at the contact patch.
IntegratedChassisThe SCW1 features matching leverage ratios and progressivity at the front and rear. Weight and strength are optimized by keeping hollow, carbon, double-crown fork and monocoque carbon control arms low and mounted to the strong core of the chassis.
Size Specific KinematicsStructure is one of the very few companies that adjusts the location of the shocks and pivots to keep all kinematic properties consistent between chassis sizes.
PracticalityThere are no special tools needed to adjust and service the SCW1. Using standard 30mm bearings, anyone who can service a rear shock can service the SCW1.

Design Features

Frameforkset Details
Frame/ForkCarbon fiber, including fork, linkages and rear triangle
Travel153mm front / 154mm rear
Wheel size27.5” (650b)
Tire clearance2.6” with generous mud clearance
Hardware17mm colleted aluminum through-axles, machined and engraved 7075 triple clamp
Shocks (2)DVO Topaz / T3AIR custom tuned / 205x65 Trunnion mount
Headsets (2)Cane Creek / 40 series
AxlesBoost 15 x 110 mm GW Twist Lever front / 12 x 148 mm stealth rear
Bearingshigh precision sealed cartridge: 6903 Main pivots / 6902 Trunnion end bearing / 3802 Rocker-seat / 
688 Steering link pivots / 22x8x9 Spherical - Teflon-coated stainless
ChainlineBoost 52 mm (also non-Boost compatible)
Chainring clearance34 T Boost / 32 T non-Boost
Front derailleurSingle-ring only / chain guide & bash guard compatible
Chain guide mountsISCG-05
Bottom bracketBSA
Seatpost clamp36.0 mm / Alloy clamp included
Seatpost diameter31.6 mm
Seatpost stroke150mm (G1), 180mm (G2), 210mm (G3)
Cable routingInternal, sleeved / Di2 compatibile, wire guides and internal battery mount
Derailleur hangerReplaceable
Brake mounts203 mm post front / 180 mm post rear
Water bottle mount1 under frame at Di2 battery cover

A limiteD number of bikes will be Delivering to customers in 2020

Integrated Linkage Frame

Balance between front and rear suspension is vital to stable and confident handling. The SCW 1 features matching leverage ratios and progressivity front and rear.

Weight and strength are optimized by keeping hollow, carbon, double-crown fork and monocoque carbon control arms low and mounted to the strong core of the chassis.

Friction Reduction

A telescoping fork is a stressed chassis element that is asked to slide while subjected to enormous bending loads.

The WTF linkage rotates on 30 mm cartridge bearings and isolates the shock from bending loads, allowing the system to move with minimal friction over bumps while offering unprecedented control at the contact patch.

Why

Telescoping forks come with compromises that negatively affect the performance of the whole bike. Structure’s WTF (Without Telescoping Fork) suspension system solves these problems and delivers massive improvements in ride, handling, and at-the-limit performance, with up to a 40% reduction in dive under braking. 

Increased stability

As the telescoping fork of a typical bike compresses, head angle becomes steeper and wheelbase and trail are reduced, resulting in decreased stability. Our WTF system does the opposite. During compression, the head angle slackens, trail increases, and there is less wheelbase reduction, resulting in a significantly more confidence-inspiring ride and a faster bike.

Geometry

Low standover, long dropper posts, and proper component selection and setup allow us to fit more riders than ever. Select your SCW 1 frame size according to riding style rather than saddle height and reach.

The changing location of a rider’s centre of mass from one size to the next can create more of a performance discrepancy between sizes, for a given model, than between brands. Structure is the only company that adjusts the location of the shocks and pivots to keep all kinematic properties consistent between chassis sizes.

In the same way you might choose the length of your skis or snowboard to reflect your preferred terrain and riding style, our short seat tubes allow you to tailor your SCW 1 to your riding. We call this “Gravity Sizing”. Instead of sizing according to riders’ body sizes with Small, Medium, and Large, we give each chassis a Gravity rating (ex. G2) to denote the level of stability. Please refer to the geometry chart for full details and contact us for assistance with your selection. 

Suggested sizing for playful handling with enhanced agility

G1: Rider height 165 cm - 180 cm / 5’5” - 5’11”
G2: Rider height 175 cm - 190 cm / 5’9” - 6’3”
G3: Rider height 185 cm - 197 cm / 6’1” - 6’5”

Suggested sizing for purposeful handling with enhanced stability
 
G1: Rider height 155 cm - 170 cm / 5'1" - 5'7"
G2: Rider height 165 cm - 180 cm / 5'5" - 5'11"
G3: Rider height 177 cm - 190 cm / 5'10" - 6'3"

ChassisG1        G2        G3        
TRAVEL – Front153153153
TRAVEL – Rear151151151
(A) REACH420460505
REACH – Effective, normalized for stack
When comparing bikes, reach is only meaningful when examined at a constant stack. Effective Reach 
is the reach value normalized to a stack height that is the average of all current AM/Enduro frames.
431474522
(B) STACK634641649
(C) SEAT TUBE ANGLE @ HEAD TOP TUBE
"Effective seat tube angle" is typically measured level with the top of the head tube, not the rider's 
assumed seat height. Most seat tube angles become considerably slacker at true saddle height.
77˚77˚77˚
(D) SEAT TUBE ANGLE @ FULL PEDALING HEIGHT76˚76˚76˚
SEAT TUBE LENGTH360410465
(E) HEAD TUBE ANGLE66˚66˚66˚
HEAD TUBE ANGLE @ FULL COMPRESSION, COMPARED TO TELESCOPING
Compared to a telescoping fork, the WTF linkage design becomes slacker when compressed. 
Exact value depends on the setting selected.
-7˚-7˚-7˚
RAKE444444
(F) TRAIL120120120
TRAIL @ FULL COMPRESSION, COMPARED TO TELESCOPING
Compared to a telescoping fork, the WTF linkage design increases trail when compressed.
Exact value depends on the setting selected.
+50 +50+50
(G) BB DROP181818
(H) BB HEIGHT337337337
(I) CHAINSTAY LENGTH435435435
(J) FRONT CENTRE741784833
FRONT CENTRE @ FULL COMPRESSION, COMPARED TO TELESCOPING
Compared to a telescoping fork, the WTF linkage design maintains front centre length when compressed.
Exact value depends on the setting selected.
+25+25+25
(K) WHEELBASE117112141263
WHEELBASE @ FULL COMPRESSION, COMPARED TO TELESCOPING
Compared to a telescoping fork, the WTF linkage design maintains wheelbase length when compressed.
Exact value depends on the setting selected.
+25+25+25

Download Geometry Sheet.

Weight

“How much does it weigh?” We hear that question often. Depending upon component selection, we are working closely with our factory to keep weight to 32 pounds for the full-carbon SCW 1, similar to the weight of our alloy bike.

For an excellent article about the importance of weight in mountain biking (in which 60-lb e-bikes are often considered to be outstanding on both climbs and descents), check this out. 

Development

Our alloy test bike features adjustability at nearly every pivot, taking the place of several non-adjustable prototypes. We took lessons learned from years of hard riding and a data-driven design process to offer geometry and kinematics that are even more ahead of the curve than they appear.

proof of concept and prototype

PROOF OF CONCEPT: Structure’s alloy prototype starts with a head angle of 69.1° and becomes slacker throughout its travel, gaining 50% more trail. It is also adjustable for anti-dive, going from plush to racy with a flip of an eccentric.

See what Pinkbike had to say about the proof of concept.

PRE-PRODUCTION PROTOTYPE: Structure developed a rapid prototype to check the aesthetics and fit before finalizing the design. We obsess over the smallest details.

A limiteD number of bikes will be Delivering to customers in 2020