Mondraker Summum S Mullet Mountain Bike 2026 - Enduro Full Suspension MTB

Built for riders who love fast, rough terrain, the Mondraker Summum S Mullet combines World Cup-inspired geometry with 200mm of suspension travel and dependable downhill-ready components. Its mullet wheel setup balances high-speed stability with agile cornering for confident descending.
Key Features:
- Stealth Evo 6061 alloy frame with Forward Geometry and 200mm Zero suspension
- RockShox Boxxer Select RC fork with 200mm DebonAir+ travel
- RockShox Vivid Coil Select R shock with 200mm rear travel
- SRAM GX DH 7-speed drivetrain with Descendant DH chainset
- SRAM DB8 4-piston hydraulic disc brakes with 220/203mm rotors
- Mavic Deemax BikePark mullet wheels with Maxxis DH tyres
- Internal cable routing and custom rubber frame protection
- Available with 0% APR finance
The Summum S Mullet is designed around Mondraker’s latest Zero Suspension System kinematics, delivering improved mid-stroke support and a more composed feel when the terrain gets rough and fast. The updated setup keeps the suspension supple over small chatter while offering the support needed for big compressions, hard braking and repeated impacts on demanding downhill tracks.
Mondraker’s Forward Geometry gives the bike a long, stable front end for confidence at speed, while the mullet wheel configuration combines a 29in front wheel for rollover ability with a more agile 27.5in rear wheel for easier line changes and tighter cornering. The Stealth Evo alloy frame uses hydroformed tubing to balance stiffness and compliance, with redesigned frame protection helping to reduce noise and shield the bike from trail impacts.
A RockShox Boxxer Select RC fork and RockShox Vivid Coil Select R rear shock provide 200mm of downhill-focused suspension travel front and rear. The setup is highly capable on steep, technical terrain, with external adjustments allowing you to fine-tune rebound, compression and spring feel for different tracks and riding styles.
SRAM’s GX DH 7-speed drivetrain is built specifically for gravity riding, offering reliable shifting and a tighter cassette range that suits downhill racing. Powerful SRAM DB8 four-piston hydraulic brakes paired with oversized rotors provide strong and consistent stopping power on long descents.
The Mavic Deemax BikePark wheelset is matched with Maxxis Assegai and DHR II tyres in tough DH casings for dependable grip and durability in aggressive conditions. Details like sealed pivot bearings, guided internal cable routing and robust frame guards underline the Summum’s focus on reliability for regular uplift days and race weekends alike.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Summum MX 6061 Alloy Stealth Evo, Mullet, hydroformed tubing, Zero suspension system, 200mm travel, Forward Geometry, alloy upper link with shock eyelet bearings, SuperBoost 12x157mm rear axle, 83mm BSA bottom bracket |
| Fork | Rockshox Boxxer Select RC 29, 200mm, DebonAir+, 1-1/8” steerer tube, Boost 20x110mm axle, offset 52mm. Settings: low-speed compression, rebound, air preload |
| Rear Shock | Rock Shox Vivid Coil Select R, 225x70mm. Rebound adjustable, HBO adjust and 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 7075 alloy, rise: 25mm, width: 800mm, 8º backsweep, 5º upsweep, 31.8mm barbore. L and XL size: 1.5 rise. |
| Front Brake | Sram DB8, oversized 4-piston caliper, Centerline 220mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads |
| Rear Brake | Sram DB8, oversized 4-piston caliper, Centerline 203mm IS 6 bolts one-piece rotor, steel-backed metal sintered pads |
| Brake Lever | Sram DB8, tool reach adjust, lever pivot bushings |
| 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 | Mavic Deemax BikePark 29, 30mm internal width, 32 holes |
| Front Hub | Mavic Boost 20x110mm, IS 6 bolts |
| Rear Hub | Mavic 12x157mm, ID360 freewheel, sealed bearings, IS 6 bolts, HG freehub |
| Spokes | Mavic 32 steel flat spokes |
| Front Tyre | Maxxis Assegai 29x2.5WT, tubeless ready, 3C MAXX GRIP compound, DH casing, 60x2TPI, folding bead |
| Rear Tyre | Maxxis DHR II 27''5x2.5 WT, tubeless ready, 3C MAXX GRIP compound, DH casing, 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 | 17.8 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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Get this on cycle to work
Save up to £1,889.58
Cycle to work is a government funded salary sacrifice scheme which allows you to spread the cost of purchasing a bike and equipment and save on Income Tax and National Insurance.
Lower Tax Rate | Higher Tax Rate | |
|---|---|---|
Monthly pre-tax cost | £374.92 | £374.92 |
Monthly cost to you | £269.94 | £217.45 |
Total cost over 12 mths | £3,239.28 | £2,609.42 |
Total savings | £1,259.72 | £1,889.58 |
The calculations provided here are based on a monthly pay frequency and will vary depending on your personal taxation and your employers scheme.
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