Siablo CX Ultegra


  • Custom Triple Butted hydro-formed 6061 Alloy frame, disc mounts
  • Silverback Carbon fork, tapered steerer, disc mounts
  • Fulcrum Racing 700 DB, Asymmetric, Alloy Double Wall rims
  • Weight: 9.5kg est
Terms & Conditions Apply


Siablo CX Ultegra is a dedicated cyclocross race bike, proven on the world cup circuit with the OMX Pro team. Featuring an Ultegra groupset, the CX Ultegra is ready to get dirty.
Cyclocross bike - Siablo CX Ultegra - Silverback Bikes

Your Better Riding Experience


Shop at Speedlab


Shop at Speedlab


Shop at Speedlab


Shop at Speedlab


Crankset Shimano Ultegra FC-6800, 50/34T, 49/52cm: 170mm; 54/56/58/61cm: 175mm Black
Cassette Shimano Ultegra CS-6800, 11 Speed, 11-25T
Rear Der Shimano Ultegra RD-6800, 11 Speed
Front Der Shimano Ultegra FD-6800, Double, Braze-on
Shifters Shimano Ultegra ST- RS685, 2 x 11
Bottom Bracket PF30
Fork Silverback Advanced Dynamics Carbon Fork, Tapered Carbon Steerer w/Tuned offset, 12mm Thru Axle Dropouts, Disc Mount
Rear shock -
Hubs Fulcrum
Rims Fulcrum Racing 700 DB, Asymmetric, Alloy Double Wall, Black
Tyres Schwalbe Racing Ralph, 700 x 33c, Folding, Black
Seatpost Sector, Alloy, Dia 27.2mm, XXS: 300mm; L: 350mm For All Other Sizes, Black
Saddle Prologo Kapa RS, STN Rail
Handlebar Sector Arc, Alloy, Short Drop Bar System, W: XXS/XS: 400mm; S/M/L: 420mm; XL: 440mm, Dia 31.8mm, Black
Stem Sector, Alloy, XXS: 70mm; XS/S/M: 90mm; L: 100mm; XL:110mm, 7° x Dia 31.8mm, Black Anodized
Frame Silverback Engineered Custom Triple Butted 6061 Aluminium with Smooth Weld Technology, Tapered 1-1/8"-1.5" Headtube, Integrated Headset, 12mm Thru Axle Dropouts, Flat Mount Disc Mounts, Replaceable Alloy Hanger
Brake set Shimano Ultegra BR-R8020, Black
Weight 9.5kg est
Weight Limit 125kg
Travel -

Find Your Fit

Proper bike fit is as important as getting the right bike for the job. Long term comfort and performance can be greatly improved with the right size bike. This acts as a guide only, so if you are unsure, please visit your Silverback reseller to be profesionally measured and sized for the perfect fit.

Siablo CX Ultegra Size Chart
Siablo CX Ultegra Geometry
Map Type XS S M L XL XXL
A SEAT TUBE C/T 465 500 535 555 575 595
B HEAD TUBE ANGLE 71˚ 71.5˚ 72˚ 72˚ 72.5˚ 73˚
C SEAT TUBE ANGLE 74.5˚ 74˚ 73.5˚ 73˚ 73˚ 72.5˚
D TOP TUBE 505 522 545 560 575 590
E REACH 359.6 365.7 378 381.1 391 393.65
F CHAINSTAY LENGTH 422 422 422 422 422 422
G BB HEIGHT 281 281 281 281 281 281
H WHEELBASE 980 989 1003 1013 1024 1028.2
I HEAD TUBE LENGTH 100 120 140 160 180 200
J STACK 524.3 545 563.8 582.9 601.8 622.76
K STANDOVER 738.6 766.2 794.7 813.2 834.3 853.7
L OFFSET 45 45 45 45 45 45



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