Stratos CF 1


  • Silverback Asymmetric Stratos Frame, UD CF, Flex Stays, Oversize Pivots. BOOST
  • Fox Performance 32 Float SC Boost, 100mm
  • Surface Carbon rims on Surface straightpull hubs
  • Weight: 11.13kg
Terms & Conditions Apply


Bred for the most demanding courses the world over, the Stratos was designed from ground up to trounce any terrain. Asymmetric design dissipates load based on magnitude and position, levitating stresses where it's most concentrated. Paired with 12-Speed XX1, 100mm Fox 32 SC and Surface Carbon wheels, it sets the scene for serious racing. Oversized tapered pivot and Burst Flex suspension makes for a stiff, responsive, extremely light and agile race bike. Dropper post compatibility for versatility, nothing will be in the way of your success on-board a Stratos.
XC mountain bike - Stratos CF 1 - Silverback Bikes

Designer's Notes

Asymmetric frame

Bigger volume tyres

Burst flex


Internal cable routing

Internal dropper post ready

Stratos CF 1 Tech


Crankset SRAM X1 Eagle, DUB, 34T
Cassete SRAM CS XG 1295 Eagle 10-50T
Rear Der SRAM X01 Eagle
Front Der
Shifters SRAM GX Eagle Trigger shifter
Fork Fox Performance 32 Float Stepcast, 29", Fit 4, BOOST, 15x110mm, Tapered Steerer, 44mm Crown Offset
Rear shock Fox Performance Elite Float, 190x42mm Metric, Stratos Tune
Hubs Surface Straight pull, XD Driver
Rims Surface Carbon Rims
Tyres Maxxis Rekon Race 29" x 2.25" Tubeless Ready
Seatpost Carbon 30,9mm, Ti Bolts
Saddle Surface Race, Ti Alloy Rails
Handlebar SBC Carbon Low rise 31.8mm, 9deg Back sweep, 12mm Rise, 780mm
Stem Surface 3D Forged Alloy, 7deg Rise, 60mm S/M, 75mm L/XL
Frame Silverback Asymmetric Stratos Frame, UD Carbon Fiber with Injection molded carbon linkage, Flex stays and oversize pivots. BOOST, 29", Tapered HT
Braked set Shimano XT M8000
Weight 11.13kg
Weight Limit 120kg
Travel 100mm


Map Type S M L
A SEAT TUBE C/T 390 430 480
B HEAD TUBE ANGLE 69˚ 69˚ 69˚
C SEAT TUBE ANGLE 74.5˚ 74.5˚ 74.5˚
D TOP TUBE 575 597 625
E REACH 415 435 456
G BB HEIGHT 337 337 337
H WHEELBASE 113 1136 1164
J STACK 576 586 594
K STANDOVER 710 774 800



  1. Pierre de Jager

    Received my Silverback Stratos on Thursday, 15 August 2019.
    What a magnificent bike !
    Thanks Marthinus Kruger of Silverback South Africa for brilliant service and an awesome bike.
    Will do my first long rides this weekend and give feedback.

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