Bronson CC 150mm VPP Travel - 27.5"

  • Frame: £2,999
  • Complete Bikes from £6,199
MBR Test Winner
MBR 10/10

Living Up To The Hype

When we introduced Bronson, it took the market by storm, redefining what people expected from a 150mm trail bike. Equally at home in the Trans-Provence as it was on The Ridge, updating and improving it was going to be no small feat.

The most visible upgrade is the completely new VPP® link arrangement.  The lower link tucks neatly above the bottom bracket, fully-recessed and protected from impacts.  Meanwhile the box-section upper link now mounts cleanly to the top tube and enhances lateral stiffness as a result. Shock rate’s been refined in the process too, delivering greater small bump sensitivity and a more progressive mid-stroke.

Geometry has also evolved subtly to meet demand from riders for a bike of this ilk.  The seat tube angle’s been steepened, placing the rider right above the cranks and perfectly in position to lay down the power. Meanwhile a one-degree slacker 66 degree head tube angle combines with a 20-25mm longer top tube and shorter chainstay length to create an evermore rally-ready geometry than its predecessor.

Frame Features

  • 148mm Rear Axle Spacing
  • Full carbon frame and swingarm
  • 150mm (6") VPP™ suspension
  • 27.5" wheels
  • Double sealed pivots for long bearing life
  • Full carbon dropouts and disk mounts
  • Angular contact bearings maximize stiffness
  • Collet axle pivots lock in place without pinch bolts
  • Bottle cage mount within front triangle fits piggyback shocks
  • Molded rubber swingarm and downtube protection
  • Stealth and external seatpost cable routing
  • Threaded Bottom Bracket
  • ISCG-05 tabs for chainguide compatibility
  • Direct mount rear derailleur option

Shock Setup

Shock: Fox Float Performance

Rider WeightAir PressureShock Sag
100lbs (45.5kg)130 psi16-19 mm
120lbs (54.4kg)150 psi16-19 mm
140lbs (63.5kg)165 psi16-19 mm
160lbs (72.6kg)185 psi16-19 mm
180lbs (81.8kg)200 psi16-19 mm
200lbs (90.7kg)220 psi16-19 mm
220lbs (99.8kg)235 psi16-19 mm
240lbs (108.8kg)255 psi16-19 mm
260lbs (117.9kg)270 psi16-19 mm
280lbs (127kg)290 psi16-19 mm

Shock: Fox Float DPX

Rider WeightAir PressureShock Sag
100lbs (45.5kg)145 psi16-19 mm
120lbs (54.4kg)165 psi16-19 mm
140lbs (63.5kg)180 psi16-19 mm
160lbs (72.6kg)200 psi16-19 mm
180lbs (81.8kg)215 psi16-19 mm
200lbs (90.7kg)235 psi16-19 mm
220lbs (99.8kg)250 psi16-19 mm
240lbs (108.8kg)270 psi16-19 mm
260lbs (117.9kg)285 psi16-19 mm
280lbs (127kg)305 psi16-19 mm

Geometry

Geometry Chart

All measurements reflect installation of a fork with a 544.4mm axle-to-crown height.

Bronson Geometry
  S M L XL
Top Tube Length 573mm - 22.5" 596mm - 23.4" 618mm - 24.3" 651mm - 25.6"
Seat Tube Length 395mm - 15.5" 420mm - 16.5" 460mm - 18.1" 495mm - 19.5"
Head Tube Angle 66° 66° 66° 66°
Seat Tube Angle 74° 74° 74° 74°
BB Height 341mm - 13.4" 341mm - 13.4" 341mm - 13.4" 341mm - 13.4"
Wheelbase 1141mm - 44.9" 1165mm - 45.8" 1189mm - 46.8" 1223mm - 48.1"
Head Tube Length 90mm - 3.5" 100mm - 3.9" 110mm - 4.3" 120mm - 4.7"
Chainstay Length 433mm - 17.0" 433mm - 17.0" 433mm - 17.0" 433mm - 17.0"
Standover Height 727mm - 28.6" 731mm - 28.8" 734mm - 28.9" 748mm - 29.4"
Reach 405mm - 16.0" 425mm - 16.7" 445mm - 17.5" 475mm - 18.7"
Stack 586mm - 23.1" 595mm - 23.4" 605mm - 23.8" 614mm - 24.2"

 

* Effective top tube
** Seat Tube length measured from center of BB to top of seat tube

Size Guide

S
5'0"5'5"
M
5'5"5'10"
L
5'10"6'1"
XL
6'1"6'6"

Frame Only: from £2999

Complete Build Options

Bronson CC | X01
Wheelsize: 27.5 - £6,199

Colours Gloss Olive / Black
Gloss Black / Sriracha
ForkFOX 36 F150 Performance Elite - 27.5
ShockFox Float Performance Elite DPX
Rear DerailleurSRAM X01 Eagle 12 speed
ShiftersSRAM X01 Eagle
BrakesSRAM Guide RSC
RotorsAvid Centerline - 180mm
CranksetSRAM X1 Eagle Carbon 32t - 170mm (S), 175mm (M-XL)
CassetteSRAM XG1295 Eagle 10-50t
ChainSRAM X01 Eagle 12 speed
HandlebarSanta Cruz AM Carbon Bar - 35x800mm
StemBurtec Enduro
GripsSanta Cruz Palmdale Grips - Black
HeadsetHope
SeatpostKS Lev w/ Southpaw
SaddleWTB Volt Race
Front TyreMaxxis Minion DHF 3C EXO TR - 27.5x2.3"
Rear TyreMaxxis Minion DHR2 EXO TR - 27.5x2.3"
WheelsF: Hope Pro 4 - 15x110mm, 32h
R: Hope Pro 4 - 12x148mm, 32h (XD)
Rims: WTB ASYM TCS i29 - 27.5
Spokes: Double Butted
SealantStan's Sealant

Available Upgrades

Bottom BracketHope Stainless BB + £60
WheelsSCB Reserve 27 AM Carbon Wheels (DT 350 Hubs) - 27.5 + £1,200

Bronson CC | XX1
Wheelsize: 27.5 - £6,699

Colours Gloss Olive / Black
Gloss Black / Sriracha
ForkFOX 36 F150 Factory Kashima - 27.5
ShockFox Float Factory DPX Kashima
Rear DerailleurSRAM XX1 Eagle 12 speed
ShiftersSRAM XX1 Eagle 12 speed
BrakesSRAM Guide Ultimate
RotorsAvid Centerline - 180mm
CranksetSRAM XX1 Eagle 32t - 170mm (S), 175mm (M-XL)
CassetteSRAM XG1295 Eagle 10-50t
ChainSRAM XX1 Eagle 12 speed
HandlebarSanta Cruz AM Carbon Bar - 35x800mm
StemBurtec Enduro
GripsSanta Cruz Palmdale Grips - Black
HeadsetHope
SeatpostKS Lev w/ Southpaw
SaddleWTB Volt Team
Front TyreMaxxis Minion DHF 3C EXO TR - 27.5x2.3"
Rear TyreMaxxis Minion DHR2 EXO TR - 27.5x2.3"
WheelsF: Hope Pro 4 - 15x110mm, 32h
R: Hope Pro 4 - 12x148mm, 32h (XD)
Rims: WTB ASYM TCS i29 - 27.5
Spokes: Double Butted
SealantStan's Sealant

Available Upgrades

Bottom BracketHope Stainless BB + £60
WheelsSCB Reserve 27 AM Carbon Wheels (i9 Hub) - 27.5 + £1,200

Can I mount a chainguide to my bike?

No. We opted against including ISCG tabs, as one-by drivetrains have rendered them mostly unnecessary.

Is the 148x12 derailleur hanger the same as the 142x12 hanger?

No, it's not. We had to make a new derailleur hanger to go with the new dropout. They look similar, but the easiest way to tell them apart is the finish. Our 142x12mm hangers have a bead-blasted finish, while the 148x12mm hangers have a smooth, machined finish.

Should I grease the headset cups when I install them (Carbon Frame)?

Yes, we recommend this. Do not use the Carbon Assembly Compound on the headset, as it will make it more difficult to remove from the frame.

What is the torque spec for the seat collar?

We don't provide a torque spec for the seatpost, because it really depends on what seatpost you are using. Some seatposts are slippery, and require more torque to stay put, and others are very thin- and can be crushed by overzealous tightening. Some are both slippery and thin... Make sure you use the Carbon Assembly Compound included with your frame, and use some common sense.

You will not damage your frame by overtightening the seat collar, assuming you have a 31.6 seatpost in there.

What Kind of Front Derailleur do I Need?

The updated versions of the Bronson, 5010, and Tallboy use Shimano side-swing front derailleurs. The names and part numbers are:

Shimano XT M8020 Side Swing
Shimano XTR M9020D Side Swing

What kind of headset does this bike use?

Carbon: This bike useds Mixed Taper 1.5" Lower, 1 1/8" Upper headset cups

Alloy: This bike uses an integrated headset with drop-in bearings and integrated bearing races. The SHIS measurement is IS41 (upper) and IS52 (lower).

What kind of rear brake adaptor do I need?

This frame uses a standard IS rear brake mount. Just pick your rotor size and order the correct adaptor to go from IS to post mount (all modern brakes).

What size bottom bracket shell does this bike use?

We use a standard 73mm threaded BB. Nearly any crank on the market (besides BB30 cranks) will fit.

What size seatpost do I need?

This bike uses a 31.6mm seatpost. Always ensure it is inserted into the frame a minimum of 4" (100mm).

Suspension SystemVPPTM
Front DerailleurDirect to Frame
Headset/Headtube Alloy Frames: Integrated Headset (IS41; IS52)
Carbon Frames: Mixed Taper 1.5" Lower, 1 1/8" Upper
Seat Post31.6mm
Seat Clamp36.4mm
Eye to Eye length200mm
Stroke57mm
Fork Compatibility150-160mm
BB ShellStandard
Max Tire Size2.4"
Brake TypesDisc
Water Bottle Mounts1x bottle cage mount