MAGMA DH

Framset / Custom Build : From 2699,00 €

EU VAT included (2249,00€ tax free)

Complete Bikes :

– RideReady 2022 : 5399,90 €

EU VAT included (4499,92€ tax free)

– Ultimate Mx 2022: 6899,90 €

EU VAT included (5749,92€ tax free)
Components details for the complete bikes : See below
Offer limited to the first 20 orders
– Free lifetime frame warranty
– Free full custom paint job

Get a suitable bike, customizable according to your wishes and durable :

Bespoke Geometry

Crucial point for an adapted bike, the geometry of your frame is defined according to your riding style, your dimensions, and the ideal behaviour you are looking for.

Custom Finish

With Vulcain, your bike will be unique. We offer a wide choice from our catalogues, or from our partners, with a total of almost 6500 shades available.

Choose your Build

We offer the Magma DH as a frameset only, as a complete bike with 2 setups available, and as a custom build on quotation, with a total choice of components.

Built to last

Our high-grade Steels allow the Magma DH to be extremely durable and resistant to all types of impacts, thanks to their mechanical strength and ductility.

A bike designed to go fast and far!

 

With its high strength steel tubes, 200mm of travel, and a progressive and sensitive 4-bar linkage kinematics, here is the MAgma DH, our downhill frame, solid, fun and efficient.

Get on the chairlift or go up in the shuttle, to the top of the slopes. Always ready for a good dose of adrenaline, the Magma DH will go down without worrying about rocks and roots, and will handle the biggest jumps and turns.

Efficient and nervous when you need it, tolerant when you’re on the edge of a riding mistake. All this with incredible durability, staying dynamic even after many years of riding.

Designed with the best materials and technologies:

 
  • Front triangle made of Reynolds 921 stainless steel. Rear parts in Reynolds 853 steel.
  • Machined parts in 15CDV6 steel, a reference in motor sport and aeronautics.
  • 3D metallic printing on the swingarm, in Maraging steel, ultra resistant.
  • Linkage parts and bolts in anodised 7075-T6 aluminium, aircraft quality.
  • Rear shock axles in high performance stainless steel.
  • Enduro Bearing MAX double row range, for increased durability and reliability.
  • Anti-corrosion treatment, for total protection, even after a paint chip.

Frame Specifications :

 
  • Naked frame weight : 4,2 kg (with a 450mm reach)
  • Wheel sizes : full 27,5’’ or Mx 29’’Av/27,5″Ar
  • Rear axle 12x150mm
  • Rear travel 200mm
  • Rear shock model 250x75mm
  • semi-integrated headset ZS44
  • Bottom bracket BSA 83mm with ISCG05 attachment
  • Seatpost Ø31.6mm with Ø34.9mm seatpost Clamp
  • External guided hooses for an easy and smooth service

Geometry :

 

At Vulcain, the geometry of your frame is made to measure. For the proper operation of the frame, certain values are blocked. You will find all the dimensions below:

  • Length [Reach] : Made to measure
  • Length [Stack] : Made to measure
  • Headtube Angle : 63.5°
  • Theorical seattube angle : 76°
  • Effective seattube angle : 71.25°
  • Seattube length [HST] : Made to measure
  • Fork height [HF] : Depending on model
  • Fork offset [DF] : Depending on model
  • Headtube length [HDD] : Made to measure
  • TopTube length [LTT] : Made to measure
  • Chainstay length [LB] : 438mm
  • Wheelbase [EMP] : Made to measure
  • BB Drop [BBd] : -5mm (27,5″) / -12mm (Mx 29″/27.5″)
  • Height BB/Ground[HBBS] : 350mm

A sensitive, progressive and responsive suspension, ready to deal with any situation 

The Magma DH has been designed to be super efficient with a ” 4-bar linkage ” kinematics, creating a deformable parallelogram, with a virtual pivot point . This system makes it possible to combine and optimize many suspension parameters thanks to the great freedom of trajectory of the rear wheel.

Leverage ratio

The suspension kinematics on the Magma DH is progressive, by about 38%. The ratio decreases throughout the travel, which translates into a very high sensitivity on small bumps, a good support in the middle of the travel and a very good firmness at the end of the travel to avoid bottoming, which allows to keep control on big landings and to improve the stability of the bike. 

Anti-squat and Anti-rise

Anti-squat is the action of pedalling on the suspension. At the SAG level, this is about 120%, allowing for efficient and responsive acceleration, without pump effect.

Anti-rise is the action of braking on the suspension. Between 55% and 65%, these values are ideal and ensure a good stability of the geometry with a suspension that remains active under braking or in very rough sections.

Rear axle path

Moving backwards at the beginning of the travel, the trajectory of the rear wheel allows the suspension to gain in sensitivity, and the bike in speed which gives a good nervousness in the technical zones and at the exit of turn. In the second half of the travel, the path reverses, forcing the bike to slow down and stabilise on big landings like jumps.

Completes Bikes :

 

COVID-19 info: Supply difficulties due to the health crisis could lead to modifications without prior notice of certain components, in order to ensure the availability of the bikes.

Rear ShockRockshox Deluxe ultimate coil DH - Ressort Noir (tarage au choix)
ForkFormula Nero C - Noir (ressort medium)
HeadsetReverse Base headset 1"1/8 - ZS44 - Noir
StemReverse Fast Lane direct mount 50mm Ø31,8mm - Noir
HandleBarReverse Base Ø31,8mm - Rise 18mm - Noir
GripsReverse Stamp single lock-on Ø30mm  - Noir
SeatpostReverse NicoVink serie Ø31,6mm - Noir
SaddleReverse Fort will crmo  - Noir
Seatpost clampReverse Bolt Ø34,9mm  - Noir
CranksetTruvativ descendant DH - 165mm - 34 dents
Bottom bracketSram Dub BSA 83mm
Chain guideGamut Trail SXR iscg05
ChainSram PC1110 114 maillons
CassetteSram GX DH 7v
Rear DerailleurBox Two DH 7v
ShifterBox Two DH 7v
BrakesFormula Cura - Noir
RotorsFormula Ø203mm std 6 trous
Front WheelReverse Jante BlackOne / moyeux Base 20x110 Boost
Rear WheelReverse Jante BlackOne / moyeux EFS DH 7v 12x150
Front TireMAXXIS High roller II 27,5"x2,40" 3C maxxgrip tr. rigide
Rear TireMAXXIS High roller II 27,5"x2,40" 3C maxxgrip tr. rigide
Rear ShockEXT Racing Shox Arma HBC V3 - Ressort ultralight V2 (tarage au choix)
ForkFormula Nero R 29" Rake 56 - Noir
HeadsetReverse Base headset 1"1/8 - ZS44 - Noir
StemReverse Black One direct mount 48mm Ø31,8mm - Noir
HandleBarReverse Nico Vink serie Ø31,8mm - Rise 18mm - Noir
GripsReverse Stamp Single Lock-on Ø30mm - Noir
SeatpostReverse NicoVink serie Ø31,6mm - Noir
SaddleReverse Fort will crmo  - Noir
Seatpost clampReverse Bolt Ø34,9mm  - Noir
CranksetTruvativ descendant DH - 165mm - 34 dents
Bottom bracketSram Dub BSA 83mm
Chain guideGamut Trail SXR iscg05
ChainSram PC1110 114 maillons
CassetteSram GX DH 7v
Rear DerailleurBox One DH 7v
ShifterBox One DH 7v
BrakesFormula Cura 4 - Polish
RotorsFormula Ø203mm std 6 trous
Front WheelFormula Linea G 29" 20x110 boost
Rear WheelFormula Linea G 27,5" 12x150mm
Front TireHUTCHINSON Griffus 29"x2.40" RR Gravity
Rear TireHUTCHINSON Griffus 27.5"x2.40" RR Gravity

Tests / Presse reviews :

" Dans les parties techniques et rocailleuses de la piste, c’est là que le Vulcain révèle sa vraie nature ! On peut facilement s’envoyer en bunny-up pour éviter un rocher ou alléger le vélo au dernier moment tant le contrôle du cadre est agréable. "
" Rares sont les vélos descente artisanaux et sur mesure [...] La démarche est belle. Au moins autant que le résultat [...] La ductilité de l'acier, un gage de stabilité et de durabilité. "
Vélo Vert magazine
#340 - Mars 2021
" Un cadre 100% made in France, en Auvergne. Respect de l'environnement et du tissu économique français, gestion des process et de la qualité, réalisation du sur mesure... Vulcain coche toutes les bonnes cases. "
" The thing that first drew our attention to this bike was the fact that it wasn't simply another cookie-cutter steel single pivot that you see in a lot of steel bikes "