KEY FEATURES
120kg - Weight limit will be for combination of bike, rider and kit.
Yes, but an aditional chainstay protector can be purchased on Speedlab.shop.
Yes
Yes, Stratos CF will take a 140mm rotor, allowing for maximum weight saving
Intermittent cleaning is the only maintenace IGUS bushings require. Ensure they are dry and clean of dust with a paper towel. Do not grease IGUS bushings since this will attract dust - IGUS bushings are self-lubricating and do not need to be greased.
Stratos uses headset bearings in the main pivot. These are Token C83-TBT bearings. Contact your local Silverback distributor for more info.
Stratos uses angular contact bearings for the main pivot. This means that as the bearings wear over time it is possible to nip out wear. Headset bearings are simple to disassemble, clean, and regrease, meaning with proper maintenance you shouldn't need to buy replacement bearings every year. All other pivot locations use IGUS bushings for low weight and longevity. Stratos CF uses a flex stay to further reduce weight and maintenance.
On Solidworks the shapes and kinematics are fine tuned and (FEA) finite element analysis can be run on the frame to analyse stresses. Our engineers then spend time with the factory to meticulously work out the carbon selection and layup for optimum strength and stiffness to least possible weight. The frame has to pass rigorous lab testing before the first riding prototype rolls out of the factory.
What: Moving the rider forward. Better pedaling position on climbs and better traction on descents. How: Shorter stem, Wide bars, adapted geometry (longer front triangle, steeper seattube, slacker headtube) and less fork offset. Moving the rider forward in relation to the BB, whilst keeping the rear-end as short as possible Why: Benefits across riding disciplines. More control, better front wheel traction. Utilizing bigger muscle groups to aid pedaling. Centralized weight improves balance, while the short rear end improves handling.
Front derailleurs are dead! 1 X Drivetrain means a single chaingring in the front and multiple gears on the cassette. Most popular setups is 1 X 10, 1 X 11 or 1 X 12 With that comes a wider main pivot bearing stance for increased stiffness.
Asymmetric tubes allow for the dispersion of shock forces between the top tube and downtube. At the riding sag point most of the shock forces are directed along the top tube. At suspension bottom-out, the rear shock rotates and shock forces are split between the top tube and downtube via the single sided support strut.
Burst flex suspension platform utilizes flexible carbon seat stays, eliminating the need for a rotational pivot (bearings or bushings) in the rear triangle. Carbon fibre's properties work alongside the shock and leverage ratio to create a cohesive suspension platform. Elimination of a pivot point results a lighter frame that requires less maintenance.
Optional storage box for spares or nutrition without reducing bottle count. Can be detached when you'd rather save the weight. Top-opening zip for easy access while riding.
Metric shocks perform better and have optional bearing hardware for low friction rotation, supported on the rocker side.
As modern XCO and XCM courses become more technical, we've adapted the bikes to suit not only the current trails, but also where XC is headed. Slacker head angles and longer wheelbases, along with other geometry and suspension tweaks allow for a bike that is more capable and forgiving on the downhills, but does not sacrifice any uphill ability in the process.
Don't leave setup up to chance, line up the rocker notch with the marking on the seatstay to guarantee perfect sag setup.
By triangulating the tubes it was possible to negate the need for a support strut on both sides. The role of the support strut is to split shock forces between the top tube and down tube.
Stratos CF2 features high quality Surface wheelset built on Shimano hubs. Strong enough for daily training and XC race courses. Surface wheels are tubeless ready.
The structure is mainly composited of T700 UD carbon fibre. Offering equilibrium in stiffness to strength ratio. Rear triangle is constructed with migh-modulus carbon fibre to ensure indefinite fatigue life of the flex stays. UD carbon fibre has absolute strength in the direction of the fibre. Strategically controlling the fibre lay-up, produces a matrix that is stiff where desired and strong where necessary, with minimum weight addition. The frame is finished in a 3K Twill weave for a robust composite surface that can withstand any demands exerted by the rider.
| Crankset | Shimano SLX, Hollowtech, 34t |
| Cassette | Shimano SLX 12spd, 10-51T |
| Rear Der | Shimano SLX M7100, 12spd |
| Shifters | Shimano SLX 12 spd shifter |
| Bottom Bracket | Shimano BB71 Pressfit |
| Fork | Fox Rhythm 34 29", 120mm Travel, BOOST, 15x110mm, Tapered Steerer |
| Rear shock | Fox Performance Elite Float, 190x42mm Metric, Stratos Tune |
| Hubs | Shimano Centerlock Hubs |
| Rims | Surface Alloy, 23mm, TRS, 29" |
| Tyres | Front: Maxxis Forekaster 29" x 2.35 EXO TR / Rear: Maxxis Rekon Race 29" x 2.35" EXO TR |
| Seatpost | Surface - Dropper post, 125mm drop for S, 150mm for M/L/XL |
| Saddle | Surface Race, Ti Alloy Rails |
| Handlebar | Surface Alloy Butted, 31.8mm, 9deg backsweep, 5deg rise |
| Stem | Surface 3D Forged Alloy, 7deg Rise, 60mm S/M, 75mm L/XL |
| Frame | Silverback Asymmetric Stratos Frame, 3K Twill Carbon Fiber, UD Carbon Flex stays and oversize pivots. BOOST, 29", 100mm Travel, Tapered HT |
| Brake set | Shimano Deore M6000 |
| Weight | 12.3kg |
| Weight Limit | 120kg - combined weight of bike and rider (including all kit). |
| Travel | 100mm |
Disclaimer: Due to the nature of bike manufacturing, specification, finishes and price may be subject to change without prior written notification.
Disclaimer: Due to Covid-related scheduling and component availability challenges, bike specifications are subject to change without notice. Specifications may not be exactly what is shown in the photo.
| map | type(mm unless specified) | S | M | L |
|---|---|---|---|---|
| Rider height(cm) | 154-170 | 168-180 | 178-192 | |
| Rider inseam(cm) | 70-77 | 76-81 | 80-87 | |
| A | Seat tube c/t | 390 | 430 | 480 |
| B | Seat tube angle | 74.5 | 74.5 | 74.5 |
| C | Head tube angle | 69 | 69 | 69 |
| D | Top Tube | 575 | 597 | 625 |
| E | Reach | 415 | 435 | 456 |
| F | Chainstay length | 435 | 435 | 435 |
| G | bb height | 337 | 337 | 337 |
| H | head tube length | 90 | 100 | 110 |
| I | stack | 576 | 586 | 594 |
| J | standover | 710 | 774 | 800 |
| K | Wheelbase | 113 | 1136 | 1164 |
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