ProX Full Suspension Carbon Frame 29er XC Frame Cross Country MTB Frame

Full suspension 29er XC bike frame

Hidden internal cable routing

Knock block system

165x38mm rear shock(standard mount)

12*148mm boost thru axle

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  • Color:

    UD black(or Customized Decal/Painting)

ProX Full Suspension Carbon Frame for Cross Country Riding 

Cross country is one of the most exciting disciplines in MTB biking. The best XC bike combines everything we love about mountain biking-fast riding, uphill and downhill. XC bike is now lighter, faster and more capable than ever.

Our carbon full suspension frame PXFS918 is currently available in two sizes (Medium/Large), and is compatible for both 27.5 inch and 29 inch bike wheels. 
The default finish of carbon frame we make is UD matte or Glossy. In addition, customized logo and color painting is acceptable. So you can get this bike frame as what you like!
What is in your parcel? It includes frame, seat clamp, rear thru-axle, headset(optional) and spare rear derailleur(optional).
If you are thinking about buying a cross-country bike frame, then read on, it won't let you down.

Bushing Size for Rear Shock

Bushing Size for Rear Shock

It's up M8*22.2 mm and down M8*40mm bushing kits as shown on this XC mountain bike frame. 
Mount Kits attach the rear shock to the frame. The eyelet bushings protect the shock eyelet from wear, and help it for better performance.

Suitable Rear Shock Size

Rear Shock Size

The rear shock size is 165x38mm(standard mount only).
Thanks to the installation position of rear shock on the frame, there is enough rooms to accept the rear shock with piggy back design and coil design.
The rear shock is efficient to steer the bike with confidence to challenge cross country rugged mountain terrain. It also help to absorb the small and large hits with ease, and provides relatively consistent and stable support through the entire adventure.
Compatible Fork for xc full suspension frame PXFS918

Compatible Fork

For the PXFS918 bike frame, it's compatible for tapered fork, upper diameter 1 1/8"(28.6mm) - lower diameter 1 1/2"(39.8mm).
The full suspension fork with 51mm fork rake/offset and boost size(15*110mm thru axle) is recommended. 

Linkage-driven Single Pivot Suspension System

Linkage-driven Single Pivot Suspension System 

Such single pivot suspension system uses an uninterrupted swingarm which connects rear axle directly to the main body of frame. There is no pivot on swingarm, so there is no pivot loosen or noise issue, and the maintenance is simpler. In addition, the stiffness, stability and controllability are greatly improved.

The seat stay shaved off at the position in the middle, which helps to reduce vibration and result in better comfortability. 

bearing size for carbon full suspension frame PXFS918


For this carbon bicycle frameset, high quality bearings are used to optimize the suspension system performance. High end bearings endow our mtb carbon frames better performance and durability. 

Max Torque for PXFS918 Frame Bolts

Max Torque for Frame Bolts

While under some types of load, the carbon fiber is significantly stronger than aluminum, steel or titanium. But in order to prevent any unexpected failure, carbon fiber frame still should be tightened according to the recommended specifications.
The max torque for these bolts are as listed in the picture.

Full Internal Cable Routing Design

Full Internal Cable Routing Design

There is no doubt that full internal cable routing looks rather pretty. This carbon XC MTB bike 29er frame is with internal cable routing design. Hidden internal cables goes into head tube directly. Perfect combination of professional geometry and full internal cable routing design. This design looks really nice and clean after whole bike assembled. 

A-Rear brake control routing
B-Dropper post remote routing
C-Rear derailleur cable routing
D-Rear shock remote routing

Knock Block System

Knock Block System 

It aids in preventing handlebar from over spinning to hit top tube.
Limiting the angle of movement for the frame, but also allow enough usual range of movement while doing the XC riding.

Latex 3D Mandrel

Latex 3D Mandrel Technology

Use newest one-piece latex 3D mandrel and moulding technology.

Such technology helps to optimize the orthodromic and strength of carbon fiber, and avoid wrinkle inside (wrinkle is a key factor that may cause crack).
Even using same material, the strength is improved 30%. 

PXFS918 full suspension xc frame

If you are also interested in the carbon bike wheels, please click the MTB wheels here or contact us for more details. 


ProX New 29er Cross Country XC Mountain Bike Carbon frame PXFS918

 Frame:  New 29er cross country mountain bike frame
 Material:  High modulus Toray T700 +T800 carbon fiber
 Size:  17'', 19'' (Medium, Large)
 Front Travel:  100~120mm
 Rear Travel:  110mm
 Headtube:  Straight 1 1/2" head tube
 Weight(+/-50g):  1950g/size 17'', 2000g/size 19''
 Seatpost Diameter:  31.6mm(34.9 clamp)- droper seat post insert length, 17''-200mm19''--220mm
 Bottom Bracket:  BSA 73(BC1.37*24T)
 Max Tire Clearance:  29er*2.35''
 Max Compatible Chainring:  36T(30T/32T/34T/36T)
 Chainline:  52mm
 Brake Type:  Post Mount Disc brake 160mm
 Rear Shock:  Mount 165*38mm (compatible with stand mount ONLY)-up M8*22.2 mm and down M8*40mm bushing kits
 Dropout:  12*148mm boost thru axle
 Test Standard:  ISO4210
 Warranty:  2 years



carbon frame full suspension geometry
REACH 435mm 460mm
STACK 597mm 606mm
WHEELBASE 1160mm 1188.9mm
FRONT CENTER 723mm 751.5mm
BB DROP 38mm 38mm
BB HEIGHT 334.5mm 334.5mm
SEAT TUBE ANGLE 74.75° 74.75°
HEAD TUBE ANGLE 67.5° 67.5°
SEAT TUBE LENGTH 432mm 470mm
HEAD TUBE LENGTH 105mm 115mm
BIKE STANDOVER HEIGH(29“*2.35”) 744.5mm 746.5mm
FORK LENGTH, FULL 520mm 520mm
TRAIL 113.7mm 113.7mm

Suspension System Simulation Data

Suspension System Simulation Data bike frame
carbon bike Suspension System Simulation Data

If you'd like high resolution pictures of suspension data, welcome to contact us. 

Vibration Test

Vibration Test XC carbon bike frame

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