• Vitus Bikes Sommet Suspension Bike 2015

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Vitus Bikes Sommet Suspension Bike

Welcome to the world of Enduro. The all new 155mm travel Sommet is your ideal introduction the thrills and spills of big mountain riding, all day epics and gravity racing.

The Sommet features a Manitou Mattoc Comp fork; Shimano Deore groupset and hydraulic disc brakes; E-Ten dropper seatpost; WTB/Formula wheelset and a Funn/Vitus cockpit to complete the package.

155mm Travel V-Link 27.5” Frame

Our Sommet frame has been completely re-designed from the ground up! Following a lengthy period of R&D we have taken the best attributes from our award winning Escarpe platform and applied this to the new Sommet platform where we fine tuned the linkage positions and leverage ratios to obtain the desired axle path we required.

The new Vitus platform features a floating horizontal shock mount (FHSM) and actual main pivot location (AMPL) designed to provide the most efficient pedalling and suspension action. This layout requires the shock to interrupt the seat-tube; our solution to this is our two-piece hollow “Clamshell” chainstay yoke which is both light and stiff.

The main pivot location is located in a fixed high and forward position in line with a 32T chainring position, this gives natural anti squat/bob when pedalling in the most commonly used 1x 32T setup without relying on excessive chain tension and none of the related pedal feedback. Because of the main pivot location the Sommet has 155mm of travel with a rearward axle path helping to keep your momentum.The chainstay pivot location is placed in-line with the chainstay eliminating any force directed to the shock linkage causing the shock to compress (aka pedal bob) due to chain tension. This pivot location also maximizes active suspension when using the rear brake similar to a floating brake design – but without the added weight.

The leverage rate is designed to have a falling rate to sag point then go mildly progressive; this helps the bike sit comfortably in the sag position whilst also providing a stable platform. The lower shock mount moves forward with the suspension, this helps to keep a linear rate without falling off at full travel. This movement also reduces the shock angle change at full travel reducing side loads and improving shock life and reliability.Manufactured from 6061-T6 triple butted aluminium and delivering 155mm of fully active suspension travel via the Horst-Link 4-bar design with our horizontal floating shock mount.

We have added a removable High Direct FD mount and ISCG-05 tabs to facilitate any drivetrain combination. The rear axle is the now industry standard 142mm x 12mm E-Thru platform.

The frame is also Reverb Stealth ready thanks to the internal cable routing.

A bolt on down tube protector adds impact resistance to the down tube and cables from rock strikes.

Rear wheel travel is controlled via the RockShox Monarch Plus R custom tuned shock which features external rebound damping adjustment.



  • Frame: Hydroformed 6061-T6 Aluminium Frame with Four-bar V-Link Rear Suspension, 155mm Travel
  • Forks: Manitou Mattoc Comp, 160mm Travel, MARS Air spring, Ø34mm 6066 Straightwall Aluminium stanchions, Compression to Lockout and Rebound damping, TPC Technology ABS+ Trail Tuned, Tapered aluminium steerer, 15mm QR Through Axle
  • Shock: RockShox Monarch Plus R, External Rebound Damping, 200mm x 57mm, Custom tune HV ML


  • Chainset: Shimano Deore FC-M615, 170mm, 38tx24t
  • Bottom Bracket: Shimano (BSA)
  • Shifters: Shimano Deore SL-M610 Rapid Fire Plus, 10-Speed
  • Front Derailleur: Shimano Deore Direct Mount FD-M616
  • Rear Derailleur: Shimano SLX RD-M675 Shadow Plus
  • Cassette: Shimano CS-HG50, 11t-36t, 10-Speed
  • Chain: KMC X10, 10-Speed


  • Rims: WTB ST i23 TCS, 27.5”
  • Front Hub: Formula - 6 Bolt, 100mm x 15mm
  • Rear Hub: Formula - 6 Bolt, 142mm x 12mm
  • Spokes: Stainless double butted
  • Tyres: Front - WTB Vigilante Comp, 27.5” x 2.3” Rear – WTB Trail Boss Comp, 27.5” x 2.25”


  • Front Brake: Shimano BR-M445 Hydraulic Disc, 180mm Rotor
  • Rear Brake: Shimano BR-M445 Hydraulic Disc, 180mm Rotor
  • Handlebars: Vitus Riser Bar, 7075 Double Butted Alloy, 15mm Rise, 740mm Wide
  • Headset: FSA Orbit 1.5 Zero Stack (NO.57), 1.1/8” – 1.5”
  • Stem: Funn Strippa, 3D Forged 6061-T6 Aluminium, 0 Degree Rise, 45mm Extension
  • Saddle: Vitus
  • Seatpost: KS E-Ten Remote, 31.6mm x 385mm, 100mm Drop
  • Seatclamp: Vitus QR

Weight: 14.45kg/31.80lbs (size M)

Buy Vitus Bikes from Chain Reaction Cycles, the World's Largest Online Bike Store.

  • Delivery costFREE
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

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