SUMMUM

DH

components

Technical specifications

  • Frame

    Summum 6061 Alloy Stealth Evo, hydroformed tubing, Zero suspension system, 205mm travel, Forward Geometry, alloy upper link with shock eyelet bearings, 12x150mm rear axle, 73mm BSA bottom bracket, MAX. capacity sealed bearings, internal or external cable routing, ISCG 05. *Optional Geometry kit

    Sizes

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

  • Rear shock

    Fox Van RC Performance, 222x70mm. Settings: low-speed compression, rebound, spring preload

    Shock setting

    Light compression, light rebound. Spring rate: S size 400 lbs, M size 450 lbs, L size 500 lbs, XL size 550 lbs

  • Fork

    Rockshox Boxxer Select RC 27´5, 200mm, DebonAir, 1-1/8” steerer tube, Boost 20x110mm axle. Settings: Low-speed compression, rebound, air preload

    Headset

    Onoff Mercurium 1.5 ZS for 1-1/8” steerer tube, 41x30.15x7x45°x45° ACB sealed bearings, geometry kit cups, external diameter 56mm

  • Stem

    Onoff Krypton DH CNC Integrated FG, 25-30mm adjustable length, 31.8mm barbore, 6061 alloy, 2x6mm spacer

    Handlebar

    OnOff Sulfur 1.0 double butted 6061 alloy, rise: 20mm, width: 780mm, 9° backsweep, 5° upsweep, 31.8mm barbore

  • Grips

    Onoff Twin, 1lock-on, 135mm

    Seatpost

    SDG Micro I-Beam SP-751 Alloy, diameter 31.6mm, length 300mm, micro-adjustment

  • Saddle

    SDG I-Fly 2.0 I-Beam, high-density PU foam, Cordura sides

    Front brake

    Sram Code R, oversized 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads

  • Rear brake

    Sram Code R, oversized 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads

    Brake lever

    Sram Code R, tool-free reach adjust

  • Rim

    MDK-DP1 27’5, 32mm external width, 32 holes

    Spokes

    CN stainless steel

  • Front hub

    MDK DC315, Boost 20x110mm, IS 6 bolts

    Rear hub

    MDK DC315, 12x150mm, sealed bearings, IS 6 bolts

  • Front tyre

    Maxxis Minion DHR II 27’5x2.4, Super Tacky compound, Wire bead

    Rear tyre

    Maxxis Minion DHR II 27’5x2.4, Super Tacky compound, Wire bead

  • Crank

    Race Face Chester, alloy, 165mm

    Rings

    36T

  • Bottom bracket

    Race Face BSA 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, X-actuation 1:1

    Lever

    Sram trigger X5, 9s, X-actuation 1:1

  • Sprocket

    Sram PG-950, 11-26T, 9s

    Hanger

    Mondraker M051

  • Others

    *Optional Geometry kit: chainstay and brake adaptors for 445mm, 450mm, 455mm, 460mm. Steering cups: +/- 1º, +/-2º

    Weight without pedals

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 65° 65° 65° 65°
G Seat Tube Angle, Effective 73.5° 73.5° 73.5° 73.5°
H Head Tube Angle 63°(+/-2°) 63°(+/-2°) 63°(+/-2°) 63°(+/-2°)
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

SUMMUM RANGE

Compare range