SUMMUM

DH

Technical specificationsHighlights

  • Fork

    Marzocchi 380 27´5 CR 200mm, Coil Spring, 1-1/8” steering tube, 20mm axle, Settings: Low-speed compression, rebound and spring preload.

  • Rings

    36 teeth.

  • Rear derailleur

    Sram X7 9s short cage, Exact actuation.

components

Technical specifications

  • Frame

    Summum Aluminium 6061 Stealth Evo Side Alloy Structure, hydroforming tubes, Zero Suspension System, Forward Geometry, aluminium upper links with bearings on the shock eyes, 12 x 150mm rear axle, BSA bottom bracket, MAX. capacity sealed bearings, internal or external cable routing, ISCG 05, *optional Geometry Kit, 205mm travel.

    Sizes

    S: 400mm / M: 400mm / L: 400mm / XL: 400mm.

  • Rear shock

    Fox Van R Evolution 222x70mm Settings: Rebound, spring preload.

    Shock setting

    Light compression, Light rebound, S size spring 400 lbs, M size spring 450 lbs, L/XL 500 lbs spring.

  • Fork

    Marzocchi 380 27´5 CR 200mm, Coil Spring, 1-1/8” steering tube, 20mm axle, Settings: Low-speed compression, rebound and spring preload.

    Headset

    Onoff ZS internal for 1-1/8” steerer tube, 36º/45º ACB sealed bearings, 56mm external diameter cups.

  • Stem

    Onoff Stoic DH Integrated FG, 20-30mm adjustable length. 6061 aluminium, 31.8mm barbore.

    Handelbar

    Mondraker double butted 6061 aluminium, Exclusive design for Summum Pro, 1” rise, 780mm width, 9º backsweep, 5º upsweep, 31.8mm barbore.

  • Grips

    Onoff Diamond, 1lock-on, 130mm.

    Seatpost

    SDG I-Beam SP-751 Alloy 31.6 300mm Micro-adjustment.

  • Saddle

    SDG I-Beam I-Fly, High-density PU, Cordura side protection.

    Front brake

    Sram Guide R 203mm, 4-piston caliper, 6-hole one-piece rotor centerline, semi-metallic pads.

  • Rear brake

    Sram Guide R 203mm, 4-piston caliper, 6-hole one-piece rotor centerline, semi-metallic pads.

    Brake lever

    Sram Guide R, Brake lever reach adjust, Interchangeable brake levers.

  • Rim

    MDK-DP1 27’5 32mm external width. 32H.

    Spokes

    CN stainless steel.

  • Front hub

    MDK Disc Pro DH 20mm x 110mm, IS 6 bolts.

    Rear hub

    MDK Disc Pro DH 12mm x 150mm, sealed bearings, IS 6 bolts.

  • Front tyre

    Maxxis Minion DHR II 27’5 x 2.4 Super Tacky Compound, Wire.

    Rear tyre

    Maxxis Minion DHR II 27’5 x 2.4 Super Tacky Compound, Wire.

  • Crank

    Truvativ Ruktion 1.0, Alloy HP cast arm, 165mm.

    Rings

    36 teeth.

  • Bottom bracket

    Truvativ Howitzer XR 73mm.

    Pedals

    /

  • Chain

    Sram PC-951 9s.

    Front  derailleur

    E.13 LG1 chain guide, Nickel Chrome protector, height adjustable to appropriate plate size. ISCG 05.

  • Rear derailleur

    Sram X7 9s short cage, Exact actuation.

    Lever

    Sram Trigger X5, 1:1 Actuation.

  • Sprocket

    Sram PG-950 11-26T 9s.

    Hanger

    Mondraker M051.

  • Others

    *Optional Geometry Kit: Chainstay adaptors for 445mm, 450mm, 455mm, 460mm. Steering cups of: 0º, +/- 1º, +/-2º. Brake adaptors of: 455mm, 460mm.

    Weight without pedals

    16.7kg.

Measurements

Geometry

  Frame size S M L XL
A Seat Tube Lenght 400mm 400mm 400mm 400mm
B Top Tube Lenght 575mm 600mm 622mm 647mm
C Bottom Bracket Drop 0mm 0mm 0mm 0mm
D Bottom Bracket Height 350mm 350mm 350mm 350mm
E Chainstay Lenght 445 - 460mm 445 - 460mm 445 - 460mm 445 - 460mm
F Seat Tube Angle, Actual 65º 65º 65º 65º
G Seat Tube Angle, Effective 73.5º 73.5º 73.5º 73.5º
H Head Tube Angle 63º (+/-2º) 63º (+/-2º) 63º (+/-2º) 63º (+/-2º)
I Fork Offset 52mm 52mm 52mm 52mm
J Wheelbase 1200mm 1225mm 1250mm 1280mm
K Head Tube Lenght 112mm 112mm 122mm 122mm
L Reach 397mm 422mm 442mm 468mm
M Stack 597mm 597mm 606mm 606mm

RANGE SUMMUM

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