Downhill racing is where it all started for Mondraker, and the Summum is the product of many years at the very top of the sport. It has been tuned, tested and thoroughly hammered by some of the world's fastest riders on the gnarliest race tracks going.
The alloy Summum frame shares its geometry with the premium carbon version and is covered by the same limited lifetime warranty. It delivers 200mm of travel through the updated Zero Suspension System, a virtual pivot design where the shock floats between two links and is compressed from both ends, making the rear end supple over small bumps yet hugely capable on big hits. This MX version runs a 29" front and 27.5" rear wheel for extra clearance and agility on steep, tight tracks.
The Summum R MX is built with proven components that will happily take a beating, run after run: a 203mm Fox 40 Performance fork and DHX2 Performance Elite coil shock, SRAM Maven Base brakes with a 220mm front rotor, e*thirteen Grappler wheels with a Sidekick rear hub and a SRAM GX DH 7-speed drivetrain with chain guide.
Features
- Summum MX hydroformed 6061 Stealth Evo alloy frame with Forward Geometry
- 200mm rear travel via the updated, floating-shock Zero Suspension System
- MX setup with 29" front and 27.5" rear wheel
- 203mm Fox 40 GRIP Performance fork and Fox DHX2 Performance Elite coil shock
- SRAM Maven Base four-piston brakes with 220mm front and 200mm rear rotors
- e*thirteen Grappler Flux wheels with Sidekick rear hub
- SRAM GX DH 7-speed drivetrain and e*thirteen chain guide
- Onoff S9 DH direct mount stem with adjustable length, SRAM UDH
Sizing
- S: 160cm - 170cm
- M: 165cm - 180cm
- L: 175cm - 185cm
- XL: 185cm - 190cm+
Specifications
DisciplineDownhill
MaterialAluminium
Front Travel203mm
Rear Travel200mm
Wheel SizeMX (29"/
27.5") WarrantyLifetime (frame)
Frame - Summum MX 6061 Alloy Stealth Evo, Mullet, hydroformed tubing, Updated Zero Suspension System, 200mm travel, Forward Geometry, alloy upper link with shock eyelet bearings, SuperBoost 12x157mm rear axle, UDH, 83mm BSA bottom bracket, MAX capacity dual row Enduro bearings, HHG internal cable routing, ISCG 05. Optional geometry kit
Rear shock - Fox DHX2 Performance Elite, 225x75mm. Settings: low-speed compression, low-speed rebound, spring preload. Trunnion top mount, 30x8mm bottom bushings
Fork - Fox 40 29 Float GRIP Performance, 203mm, air spring, 1-1/8" steerer tube, 20x110mm axle, offset 52mm. Settings: 3-pos compression dial, air preload
Headset - Onoff ZS56/ZS56, 1-1/8", 1-1/8" steerer tube, 42x30x7x45°x45° ACB sealed bearings, geometry kit cups, external diameter 62mm
Stem - Onoff S9 DH CNC Integrated, 45-50mm adjustable length, 10mm rise, 31.8mm barbore, 7075 alloy, 2x6mm spacer
Handlebar - Onoff S6 1.0 7050 alloy, rise: 25mm, width: 800mm, 8° backsweep, 5° upsweep, 31.8mm barbore. L and XL size: 38mm rise
Grips - Onoff Desert Pro, CNC lock-on, 135mm. L and XL: thicker size
Seatpost - Onoff S3 DH Alloy, diameter 31.6mm, length 300mm
Saddle - Ergon SM10 DH Black
Front brake - Sram Maven Base, 18 and 19.5mm 4-piston caliper, Centerline 220mm IS 6 bolts one-piece rotor, steel-backed organic pads
Rear brake - Sram Maven Base, 18 and 19.5mm 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed organic pads
Brake lever - Sram Maven Base, SwingLink and lever pivot bushings, tool-free reach adjust
Rims - e*thirteen Grappler Flux, IW30 Hookless, 6069 Welded Aluminium, 30mm internal width, tubeless ready, 28 spokes
Spokes - e*thirteen Sapim D-light / Brass
Front hub - e*thirteen Boost 20x110mm, triple-sealed, fully machined aluminium, IS 6 bolts
Rear hub - e*thirteen Superboost 12x157mm, Sidekick, 12°/15°/18° adjustable deadband, triple-sealed, fully machined aluminium w/6-degree engagement, IS 6 bolts, HG freehub
Front tyre - Maxxis Assegai 29x2.5WT, tubeless ready, 3C MaxxGrip compound, DH casing, 60x2TPI, folding bead
Rear tyre - Maxxis Minion DHR II 27.5x2.5 WT, tubeless ready, 3C MaxxTerra compound, DH casing, 60x2TPI, folding bead
Crankset - Sram Truvativ Descendant DH, DUB axle, Direct mount chainring, 165mm, CL 56.5
Chainring - 34T, steel, X-SYNC
Bottom bracket - Sram DUB BSA, sealed bearings, 83mm
Chain - Sram PC1110 11s, Powerlock
Chain guide - e*thirteen Vario Compact upper slider, alloy backplate, DMB (Direct Mount Bashguard) lower slider 34-36T, ISCG 05 adjustable upper slider
Rear derailleur - Sram GX DH, 7s, medium cage
Shift levers - Sram Trigger GX DH 7s, X-Actuation 1:1
Cassette - Sram PG-720 11-25T, 7s
Derailleur hanger - Sram UDH
Others - Optional geometry kit: ±5mm headset cups, lower shock mount flip chip, +5mm dropout, -5mm dropout
Summum R MX 2026
- Downhill
- 203 / 200mm travel
- Alloy frame
Finance available – see options
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Downhill racing is where it all started for Mondraker, and the Summum is the product of many years at the very top of the sport. It has been tuned, tested and thoroughly hammered by some of the world's fastest riders on the gnarliest race tracks going.
The alloy Summum frame shares its geometry with the premium carbon version and is covered by the same limited lifetime warranty. It delivers 200mm of travel through the updated Zero Suspension System, a virtual pivot design where the shock floats between two links and is compressed from both ends, making the rear end supple over small bumps yet hugely capable on big hits. This MX version runs a 29" front and 27.5" rear wheel for extra clearance and agility on steep, tight tracks.
The Summum R MX is built with proven components that will happily take a beating, run after run: a 203mm Fox 40 Performance fork and DHX2 Performance Elite coil shock, SRAM Maven Base brakes with a 220mm front rotor, e*thirteen Grappler wheels with a Sidekick rear hub and a SRAM GX DH 7-speed drivetrain with chain guide.
Features
- Summum MX hydroformed 6061 Stealth Evo alloy frame with Forward Geometry
- 200mm rear travel via the updated, floating-shock Zero Suspension System
- MX setup with 29" front and 27.5" rear wheel
- 203mm Fox 40 GRIP Performance fork and Fox DHX2 Performance Elite coil shock
- SRAM Maven Base four-piston brakes with 220mm front and 200mm rear rotors
- e*thirteen Grappler Flux wheels with Sidekick rear hub
- SRAM GX DH 7-speed drivetrain and e*thirteen chain guide
- Onoff S9 DH direct mount stem with adjustable length, SRAM UDH
Sizing
- S: 160cm - 170cm
- M: 165cm - 180cm
- L: 175cm - 185cm
- XL: 185cm - 190cm+
Specifications
DisciplineDownhill
MaterialAluminium
Front Travel203mm
Rear Travel200mm
Wheel SizeMX (29"/
27.5") WarrantyLifetime (frame)
Frame - Summum MX 6061 Alloy Stealth Evo, Mullet, hydroformed tubing, Updated Zero Suspension System, 200mm travel, Forward Geometry, alloy upper link with shock eyelet bearings, SuperBoost 12x157mm rear axle, UDH, 83mm BSA bottom bracket, MAX capacity dual row Enduro bearings, HHG internal cable routing, ISCG 05. Optional geometry kit
Rear shock - Fox DHX2 Performance Elite, 225x75mm. Settings: low-speed compression, low-speed rebound, spring preload. Trunnion top mount, 30x8mm bottom bushings
Fork - Fox 40 29 Float GRIP Performance, 203mm, air spring, 1-1/8" steerer tube, 20x110mm axle, offset 52mm. Settings: 3-pos compression dial, air preload
Headset - Onoff ZS56/ZS56, 1-1/8", 1-1/8" steerer tube, 42x30x7x45°x45° ACB sealed bearings, geometry kit cups, external diameter 62mm
Stem - Onoff S9 DH CNC Integrated, 45-50mm adjustable length, 10mm rise, 31.8mm barbore, 7075 alloy, 2x6mm spacer
Handlebar - Onoff S6 1.0 7050 alloy, rise: 25mm, width: 800mm, 8° backsweep, 5° upsweep, 31.8mm barbore. L and XL size: 38mm rise
Grips - Onoff Desert Pro, CNC lock-on, 135mm. L and XL: thicker size
Seatpost - Onoff S3 DH Alloy, diameter 31.6mm, length 300mm
Saddle - Ergon SM10 DH Black
Front brake - Sram Maven Base, 18 and 19.5mm 4-piston caliper, Centerline 220mm IS 6 bolts one-piece rotor, steel-backed organic pads
Rear brake - Sram Maven Base, 18 and 19.5mm 4-piston caliper, Centerline 200mm IS 6 bolts one-piece rotor, steel-backed organic pads
Brake lever - Sram Maven Base, SwingLink and lever pivot bushings, tool-free reach adjust
Rims - e*thirteen Grappler Flux, IW30 Hookless, 6069 Welded Aluminium, 30mm internal width, tubeless ready, 28 spokes
Spokes - e*thirteen Sapim D-light / Brass
Front hub - e*thirteen Boost 20x110mm, triple-sealed, fully machined aluminium, IS 6 bolts
Rear hub - e*thirteen Superboost 12x157mm, Sidekick, 12°/15°/18° adjustable deadband, triple-sealed, fully machined aluminium w/6-degree engagement, IS 6 bolts, HG freehub
Front tyre - Maxxis Assegai 29x2.5WT, tubeless ready, 3C MaxxGrip compound, DH casing, 60x2TPI, folding bead
Rear tyre - Maxxis Minion DHR II 27.5x2.5 WT, tubeless ready, 3C MaxxTerra compound, DH casing, 60x2TPI, folding bead
Crankset - Sram Truvativ Descendant DH, DUB axle, Direct mount chainring, 165mm, CL 56.5
Chainring - 34T, steel, X-SYNC
Bottom bracket - Sram DUB BSA, sealed bearings, 83mm
Chain - Sram PC1110 11s, Powerlock
Chain guide - e*thirteen Vario Compact upper slider, alloy backplate, DMB (Direct Mount Bashguard) lower slider 34-36T, ISCG 05 adjustable upper slider
Rear derailleur - Sram GX DH, 7s, medium cage
Shift levers - Sram Trigger GX DH 7s, X-Actuation 1:1
Cassette - Sram PG-720 11-25T, 7s
Derailleur hanger - Sram UDH
Others - Optional geometry kit: ±5mm headset cups, lower shock mount flip chip, +5mm dropout, -5mm dropout
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