Mondraker Summum R Mullet Mountain Bike 2026 - Downhill Full Suspension MTB
The Mondraker Summum R Mullet is a downhill bike developed from World Cup racing, combining long-travel suspension, stable geometry and mullet wheels. Designed for speed and control on steep, rough terrain and demanding downhill tracks.
Key Features:
- Stealth Alloy frame with Forward Geometry and 200mm travel
- Fox 40 Float GRIP fork, 203mm travel
- Fox DHX2 Performance Elite shock, 200mm travel
- SRAM GX DH 7-speed drivetrain
- SRAM Maven Base 4-piston hydraulic disc brakes
- Mullet wheels: 29in front, 27.5in rear with Maxxis tyres
- Zero Suspension System with updated kinematics
- Available with 0% APR finance
The Mondraker Summum R Mullet is a downhill bike built with racing at its core, designed to handle steep, fast and technical terrain with confidence. Developed through World Cup competition, it combines proven suspension performance with modern geometry to deliver a composed ride at speed.
The Stealth Alloy frame uses hydroformed tubing to balance strength, stiffness and compliance. Mondraker’s Forward Geometry gives a longer reach and slacker front end, helping improve stability when riding steep descents and high-speed sections. The updated Zero Suspension System delivers 200mm of rear travel, with refined kinematics that add more mid-stroke support while maintaining sensitivity over small bumps.
Up front, the Fox 40 Float GRIP fork provides 203mm of travel, offering consistent damping and control through rough terrain. At the rear, the Fox DHX2 Performance Elite coil shock delivers a planted feel with strong small-bump sensitivity and predictable support on bigger impacts.
The mullet wheel setup pairs a 29-inch front wheel for improved rollover and stability with a 27.5-inch rear for agility and easier cornering. Both wheels are built on e*thirteen Grappler Flux rims and fitted with Maxxis tyres, combining grip and durability for downhill riding.
A SRAM GX DH 7-speed drivetrain is designed specifically for gravity riding, offering reliable shifting and a focused gear range for descending. SRAM Maven Base four-piston hydraulic brakes with large rotors provide powerful, consistent stopping when it matters most.
Additional features like internal cable routing, sealed pivot bearings and integrated frame protection improve durability and reduce maintenance, making the bike well suited to regular uplift days and demanding terrain.
Overall, the Summum R Mullet is a purpose-built downhill bike that focuses on control, stability and predictable suspension performance, making it a strong choice for riders pushing their limits on steep and technical tracks.
Occasionally, without notice, manufacturers change product design and/or specifications.
| 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 |
| 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 |
| Rear Shock | Fox DHX2 Performance Elite, 225x75mm. Settings: low-speed compression, low-speed rebound, spring preload. Trunnion top mount, 30x8mm bottom bushings |
| Headset | Onoff ZS56/ZS56, 1-1/8", 1-1/8" steerer tube, 42x30x7x45ºx45º 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 |
| Bars | Onoff S6 1.0 7050 alloy, rise: 25mm, width: 800mm, 8º backsweep, 5º upsweep, 31.8mm barbore. L and XL size: 38mm rise. |
| Front Brake | Sram Maven Base, 18 and 19.5-millimeter 4-piston caliper, Centerline 220mm IS 6 bolts one-piece rotor, steel-backed organic pads |
| Rear Brake | Sram Maven Base, 18 and 19.5-millimeter 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, tools-free reach adjust |
| Front Mech | E.13 Vario Compact Upper Slider ,Alloy backplate ,DMB (Direct mount Bashguard) Lower Slider 34-36t, ISCG 05 adjustable upper slider |
| Rear Mech | Sram GX DH, 7s, medium cage |
| Shifters | SRAM trigger GX DH 7s, X-actuation 1:1 |
| Speed | 7 |
| Rims | e*thirteen Grappler Flux, IW30 Hookless, 6069 Welded Aluminum, 30mm internal width, tubeless ready, 28 spokes |
| Front Hub | e*thirteen Boost 20x110mm, triple-sealed, fully machined aluminum, IS 6 bolts |
| Rear Hub | e*thirteen Superboost 12x157mm, Sidekick,12°/15°/18° Adjustable Deadband, triple-sealed, fully machined aluminum w/6-degree engagement, IS 6 bolts, HG freehub |
| Spokes | e*thirteen Sapim D-light / Brass |
| Front Tyre | Maxxis Assegai 29x2.5WT, tubeless ready, 3C MAXX GRIP compound, DH casing, 60x2TPI, folding bead |
| Rear Tyre | Maxxis Minion DHR II 27''5x2.5 WT, tubeless ready, 3C Maxx Terra compound, DH protection, 60x2TPI, folding bead |
| Seat Post | Onoff S3 DH Alloy, diameter 31.6mm, length 300mm |
| Saddle | Ergon SM10 DH Black |
| Chainset | Sram Truvativ Descendant DH, DUB axle, Direct mount chain ring, 165mm CL 56´5, 34T, steel, X-SYNC |
| Bottom Bracket | SRAM DUB BSA, sealed bearings, 83mm |
| Chain | SRAM PC1110 11s, Powerlock |
| Cassette | SRAM PG 720 11-25T, 7s |
| Weight | 18.7 kg |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Mondraker Summum R Mullet Mountain Bike 2026 - Downhill Full Suspension MTB
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