MY22 Bronson4 CC XX1 AXS RSV Gold Large 79e77d47 157c 47ef 983c C22e9d561e38

Bronson 4 MY22

2021 - 2022

If in doubt, take a Bronson out

The 150mm-travel bike can go deep on any landing and the VPP™ suspension design makes sure that there’s no wasted energy when heading back up for another go. If you value style at speed or want to have fun feeling fast, then mixed wheels (29” up front, 27.5” out back) are the right choice. The larger front wheel provides more traction and stability that’ll make you feel more confident squaring off the turns and diving for the inside lines. But a 27.5-inch tire in the rear means this bike still loves getting up on the back wheel and into the air.

Carbon C/CC
Front (MM) 160
Rear (MM) 150
Wheel Size MX
Shop Spare Parts

Model Specs

Suspension System VPP
Front Derailleur Mount No compatibility
Headset Integrated (IS41/52)
Seat Post Diameter 31.6mm
Seat Clamp Diameter 36.4mm
Shock Length 230mm
Shock Stroke 60mm
Fork Compatibility 160mm
Bottom Bracket Shell 73mm Threaded
Max Tire Clearance 2.6"
Max Chainring Size 36t
Water Bottle Mounts 1
Shock Bushing Size Front 30x8 (standard bushing)
Shock Bushing Size Rear 30x8 (roller bearing)
Rear Brake Mount 180 PM
Fork Offset 37mm (XS) | 44mm (S-XL)

Build Kits

Select a Build Kit

Weight 32.89 lbs / 14.92 kg
Material Carbon C
Shock FOX Float X Performance
Fork RockShox Lyrik Select, 160mm
Rear Derailleur SRAM NX Eagle, 12spd
Shifters SRAM NX Eagle, 12spd
Cassette SRAM PG1230, 12spd, 11-50t
Chain SRAM NX Eagle, 12spd
Bottom Bracket SRAM DUB 68/73mm Threaded BB
Headset Cane Creek 10 IS Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub SRAM MTH 716, 15x110, Torque Cap, 32h
Rims RaceFace AR Offset 30 29" Rim f, 27.5" Rim r
Rear Hub SRAM MTH 746, 12x148, 32h
Rotors Avid Centerline 200mm
Brakes SRAM G2 R
Crankset SRAM Descendant Eagle 148 DUB 32t
Handlebars Burgtec Alloy Bar
Stem Burgtec Enduro MK3
Saddle WTB Silverado Race Saddle
Seatpost SDG Tellis Dropper, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 32.37 lbs / 14.68 kg
Material Carbon C
Shock RockShox Super Deluxe Select+
Fork FOX 36 Float Performance, 160mm
Rear Derailleur SRAM GX Eagle, 12spd
Shifters SRAM GX Eagle, 12spd
Cassette SRAM XG1275 Eagle, 12spd, 10-50t
Chain SRAM GX Eagle, 12spd
Bottom Bracket SRAM DUB 68/73mm Threaded BB
Headset Cane Creek 40 IS Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub DT Swiss 370, 15x110, 6 bolt, 28h
Rims RaceFace AR Offset 30 29" Rim f, 27.5" Rim r
Rear Hub DT Swiss 370, 12x148, XD, 28h
Rotors Avid Centerline 200mm/180mm
Brakes SRAM Code R
Crankset SRAM GX Eagle 148 DUB 32t
Handlebars Burgtec Alloy Bar
Stem Burgtec Enduro MK3
Saddle WTB Silverado Medium Cromoly SL Fusion Saddle
Seatpost RockShox Reverb Stealth, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 32.36 lbs / 14.68 kg
Material Carbon C
Shock RockShox Super Deluxe Select+
Fork FOX 36 Float Performance Elite, 160mm
Rear Derailleur Shimano XT M8100, 12spd
Shifters Shimano XT M8100, 12spd
Cassette Shimano XT M8100, 12spd, 10-51t
Chain Shimano XT, 12spd
Bottom Bracket Shimano XT 68/73mm Threaded BB
Headset Cane Creek 40 IS Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub Industry Nine 1/1, 110x15, 6 Bolt, 28h
Rims RaceFace ARC Offset 30 29" Rim f, 27.5" Rim r
Rear Hub Industry Nine 1/1, 148x12, Microspline, 6 Bolt, 28h
Rotors Shimano XT RT86, Ice Tech, 203mm/180mm
Brakes Shimano XT 8120
Crankset Shimano XT M8120 32t
Handlebars Santa Cruz 35 Carbon Bar, 800mm, 35mm Rise
Stem Burgtec Enduro MK3
Saddle WTB Silverado Medium Cromoly SL Fusion Saddle
Seatpost RockShox Reverb Stealth, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 32.31 lbs / 14.66 kg
Material Carbon C
Shock RockShox Super Deluxe Select+
Fork FOX 36 Float Performance Elite, 160mm
Rear Derailleur Shimano XT M8100, 12spd
Shifters Shimano XT M8100, 12spd
Cassette Shimano XT M8100, 12spd, 10-51t
Chain Shimano XT, 12spd
Bottom Bracket Shimano XT 68/73mm Threaded BB
Headset Cane Creek 40 IS Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub Industry Nine 1/1, 110x15, 6 Bolt, 28h
Rims Reserve 30 29" Rim f, 27.5" Rim r
Rear Hub Industry Nine 1/1, 148x12, Microspline, 6 Bolt, 28h
Rotors Shimano XT RT86, Ice Tech, 203mm/180mm
Brakes Shimano XT 8120
Crankset Shimano XT M8120 32t
Handlebars Santa Cruz 35 Carbon Bar, 800mm, 35mm Rise
Stem Burgtec Enduro MK3
Saddle WTB Silverado Medium Cromoly SL Fusion Saddle
Seatpost RockShox Reverb Stealth, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 31.14 lbs / 14.13 kg
Material Carbon CC
Shock RockShox Super Deluxe Ultimate
Fork FOX 36 Float Factory, 160mm
Rear Derailleur SRAM X01 Eagle, 12spd
Shifters SRAM X01 Eagle, 12spd
Cassette SRAM XG1295 Eagle, 12spd, 10-50t
Chain SRAM X01 Eagle, 12spd
Bottom Bracket SRAM DUB 68/73mm Threaded BB
Headset Cane Creek 40 IS Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub Industry Nine 1/1, 110x15, 6 Bolt, 28h
Rims RaceFace ARC Offset 30 29" Rim f, 27.5" Rim r
Rear Hub Industry Nine 1/1, 148x12, XD, 6 Bolt, 28h
Rotors Avid Centerline 200mm/180mm
Brakes SRAM Code RSC
Crankset SRAM X1 Eagle Carbon 148 DUB 32t
Handlebars Santa Cruz 35 Carbon Bar, 800mm, 35mm Rise
Stem Burgtec Enduro MK3
Saddle WTB Silverado Medium Stainless Fusion Saddle
Seatpost RockShox Reverb Stealth, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 30.8 lbs / 13.97 kg
Material Carbon CC
Shock RockShox Super Deluxe Ultimate
Fork FOX 36 Float Factory, 160mm
Rear Derailleur SRAM X01 Eagle AXS, 12spd
Shifters SRAM GX AXS Shifter
Cassette SRAM XG1295 Eagle, 12spd, 10-50t
Chain SRAM X01 Eagle, 12spd
Bottom Bracket SRAM DUB 68/73mm Threaded BB
Headset Cane Creek 40 IS Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub Industry Nine 1/1, 110x15, 6 Bolt, 28h
Rims Reserve 30 29" Rim f, 27.5" Rim r
Rear Hub Industry Nine 1/1, 148x12, XD, 6 Bolt, 28h
Rotors Avid Centerline 200mm/180mm
Brakes SRAM Code RSC
Crankset SRAM X1 Eagle Carbon 148 DUB 32t
Handlebars Santa Cruz 35 Carbon Bar, 800mm, 35mm Rise
Stem Burgtec Enduro MK3
Saddle WTB Silverado Medium Stainless Fusion Saddle
Seatpost RockShox Reverb Stealth, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 30.56 lbs / 13.86 kg
Material Carbon CC
Shock RockShox Super Deluxe Ultimate
Fork FOX 36 Float Factory, 160mm
Rear Derailleur SRAM XX1 Eagle AXS, 12spd
Shifters SRAM AXS Paddle Shifter
Cassette SRAM XG1295 Eagle Rainbow, 12spd, 10-50t
Chain SRAM XX1 Eagle, 12spd
Bottom Bracket SRAM DUB 68/73mm Threaded BB
Headset Chris King DropSet 3 Integrated Headset
Rear Tire Maxxis Minion DHR II 27.5"x2.4", 3C, EXO, TR
Front Tire Maxxis Minion DHF 29"x2.5, 3C, MaxxGrip, EXO, TR
Sealant Stan's Sealant
Front Hub i9 Hydra, 15x110, 28h
Rims Reserve 30 29" Rim f, 27.5" Rim r
Rear Hub i9 Hydra, 12x148, XD, 28h
Rotors Avid Centerline 200mm/180mm
Brakes SRAM Code RSC
Crankset SRAM XX1 Eagle AXS 148 DUB 32t
Handlebars Santa Cruz 35 Carbon Bar, 800mm, 35mm Rise
Stem i9 A35
Saddle WTB Silverado Medium Ti Fusion Saddle
Seatpost RockShox Reverb Stealth, 31.6
Grips / Bar Tape Santa Cruz House Grips
Travel 160/150mm
Wheel Size MX
Weight 6.72 lbs / 3.05 kg
Material Carbon CC

Geometry

All units are in millimeters or degrees.
xs s m l xl
Reach (Hi/Lo) 405/402 430/427 455/452 475/472 500/497
Stack (Hi/Lo) 594/595 617/619 626/628 635/637 649/651
Head Tube Angle (Hi/Lo) 64.7°/64.5° 64.7°/64.5° 64.7°/64.5° 64.7°/64.5° 64.7°/64.5°
Seat Tube Length (Hi/Lo) 370/370 380/380 405/405 430/430 460/460
Front Center (Hi/Lo) 722/722 757/757 786/786 811/810 842/842
BB Height (Hi/Lo) 344/341 344/341 344/341 344/341 344/341
BB Drop Front (Hi/Lo) 10/13 29/32 29/32 29/32 29/32
BB Drop Rear (Hi/Lo) 10/13 29/32 29/32 29/32 29/32
Wheelbase (Hi/Lo) 1149/1154 1188/1189 1221/1222 1249/1249 1284/1285
Rear Center (Hi/Lo) 427/432 431/432 435/436 438/439 442/443
Head Tube Length (Hi/Lo) 110/110 100/100 110/110 120/120 135/135
Top Tube Length (Hi/Lo) 536/542 570/575 599/604 623/627 653/657
Seat Tube Angle (Hi/Lo) 77.6°/76.9° 77.2°/76.7° 77.1°/76.6° 76.9°/76.5° 76.7°/76.4°
Standover Height (Hi/Lo) 701/698 709/706 731/727 729/726 728/725

Size Guide

X-Small
142cm 4'8" - 154cm 5'1" Reach: 405mm
Small
154cm 5'1" - 165cm 5'5" Reach: 430mm
Medium
165cm 5'5" - 175cm 5'9" Reach: 455mm
Large
175cm 5'9" - 185cm 6'1" Reach: 475mm
X-Large
185cm 6'1" - 193cm 6'4" Reach: 500mm

Suspension Setup

Rockshox Lyrik Base 160
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Rebound (from closed)
100 45 45 11
120 54 55 10
140 64 65 9
160 73 75 9
180 82 85 8
200 91 95 7
220 100 105 7
240 109 115 6
260 113 120 6
Fox Float X Performance
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Sag Rebound (from closed)
100 45 105 28-32%, 16.5-19mm 12
120 54 125 28-32%, 16.5-19mm 11
140 64 145 28-32%, 16.5-19mm 11
160 73 165 28-32%, 16.5-19mm 10
180 82 185 28-32%, 16.5-19mm 10
200 91 205 28-32%, 16.5-19mm 10
220 100 225 28-32%, 16.5-19mm 9
240 109 245 28-32%, 16.5-19mm 9
260 118 265 28-32%, 16.5-19mm 8
Fox 36 Performance 160
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Rebound (from closed)
120 54 66 13
130 59 70 12
140 64 74 11
150 68 78 10
160 73 82 9
170 77 86 8
180 82 89 7
190 86 94 6
200 91 99 5
210 95 105 4
220 100 109 3
230 104 113 2
240 109 117 1
Rockshox Super Deluxe Select Plus
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Sag Rebound (from closed)
100 45 85 28-32%, 16.5-19mm 7
120 54 105 28-32%, 16.5-19mm 6
140 64 130 28-32%, 16.5-19mm 6
160 73 145 28-32%, 16.5-19mm 6
180 82 170 28-32%, 16.5-19mm 5
200 91 190 28-32%, 16.5-19mm 5
220 100 215 28-32%, 16.5-19mm 5
240 109 235 28-32%, 16.5-19mm 4
260 118 260 28-32%, 16.5-19mm 4
Fox 36 Performance Elite 160
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Rebound (L/H from closed) Compression (L/H from closed)
120 54 66 9,8 10,5
130 59 70 8,7 10,5
140 64 74 7,6 10,5
150 68 78 7,6 10,5
160 73 82 6,5 10,5
170 77 86 6,5 10,5
180 82 89 5,4 10,5
190 86 94 4,3 10,5
200 91 99 4,3 10,5
210 95 105 3,2 10,5
220 100 109 2,1 10,5
230 104 113 2,1 10,5
240 109 117 1,0 10,5
Rockshox Super Deluxe Select Plus
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Sag Rebound (from closed) Compression (L/H from closed)
100 45 85 28-32%, 16.5-19mm 7 -1/-1
120 54 105 28-32%, 16.5-19mm 6 -1/-1
140 64 130 28-32%, 16.5-19mm 6 -1/-1
160 73 145 28-32%, 16.5-19mm 6 -1/-1
180 82 170 28-32%, 16.5-19mm 5 -1/-1
200 91 190 28-32%, 16.5-19mm 5 -1/-1
220 100 215 28-32%, 16.5-19mm 5 -1/-1
240 109 235 28-32%, 16.5-19mm 4 -1/-1
260 118 260 28-32%, 16.5-19mm 4 -1/-1
Fox 36 Factory 160
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Rebound (L/H from closed) Compression (L/H from closed)
120 54 66 9,8 10,5
130 59 70 8,7 10,5
140 64 74 7,6 10,5
150 68 78 7,6 10,5
160 73 82 6,5 10,5
170 77 86 6,5 10,5
180 82 89 5,4 10,5
190 86 94 4,3 10,5
200 91 99 4,3 10,5
210 95 105 3,2 10,5
220 100 109 2,1 10,5
230 104 113 2,1 10,5
240 109 117 1,0 10,5
Rockshox Super Deluxe Ultimate
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Sag Rebound (from closed) Compression (L/H from middle)
100 45 85 28-32%, 16.5-19mm 7 -1/-1
120 54 105 28-32%, 16.5-19mm 6 -1/-1
140 64 130 28-32%, 16.5-19mm 6 -1/-1
160 73 145 28-32%, 16.5-19mm 6 -1/-1
180 82 170 28-32%, 16.5-19mm 5 -1/-1
200 91 190 28-32%, 16.5-19mm 5 -1/-1
220 100 215 28-32%, 16.5-19mm 5 -1/-1
240 109 235 28-32%, 16.5-19mm 4 -1/-1
260 118 260 28-32%, 16.5-19mm 4 -1/-1
Fox 36 Factory 160
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Rebound (L/H from closed) Compression (L/H from closed)
120 54 66 9,8 10,5
130 59 70 8,7 10,5
140 64 74 7,6 10,5
150 68 78 7,6 10,5
160 73 82 6,5 10,5
170 77 86 6,5 10,5
180 82 89 5,4 10,5
190 86 94 4,3 10,5
200 91 99 4,3 10,5
210 95 105 3,2 10,5
220 100 109 2,1 10,5
230 104 113 2,1 10,5
240 109 117 1,0 10,5
Rockshox Super Deluxe Ultimate
Rider Weight (lbs) Rider Weight (kgs) Pressure (psi) Sag Rebound (from closed) Compression (L/H from closed)
100 45 85 28-32%, 16.5-19mm 7 -1/-1
120 54 105 28-32%, 16.5-19mm 6 -1/-1
140 64 130 28-32%, 16.5-19mm 6 -1/-1
160 73 145 28-32%, 16.5-19mm 6 -1/-1
180 82 170 28-32%, 16.5-19mm 5 -1/-1
200 91 190 28-32%, 16.5-19mm 5 -1/-1
220 100 215 28-32%, 16.5-19mm 5 -1/-1
240 109 235 28-32%, 16.5-19mm 4 -1/-1
260 118 260 28-32%, 16.5-19mm 4 -1/-1

Transmission Setup

Frame Size Flip Chip Setup Key Setup Cog 30T 32T 34T 36T
XSmall High B 7 114 114 116 116
Small High B 7 114 116 116 118
Medium High B 7 116 116 118 118
Large High B 7 116 116 118 118
XLarge High B 7 116 118 118 120
XSmall Low B 7 114 116 116 118
Small Low B 7 114 116 116 118
Medium Low B 7 116 116 118 118
Large Low B 7 116 116 118 118
XLarge Low B 7 116 118 118 120

Exploded Diagrams

Front Triangle, Headtube Badge, Glovebox
label part_number quantity name blurb torque
A 67-19217 1 Head Tube Badge Clean frame surface, center on headtube
B 30-22560 1 Shuttle Guard
C 30-23750 1 Shuttle Guard Mount
D 26-21249 2 M4x8 BHCS Apply grease to threads 0.65 Nm
E 30-23718 1 Downtube Protector For Bronson without Glovebox, use 30-21457
F 26-18382 2 M4x12 BHC Apply grease to treads 0.65 Nm
G 30-23225 2 Glovebox nut
H 26-25333 1 Glovebox bezel
I 26-23284 4 M3x8 BHCS Apply Loctite 242 to threads 0.5 Nm
J 26-22843 1 Glovebox lid
K 26-22358 1 M3x6 Apply Loctite 242 to threads 0.6 Nm
L 30-22620 1 Storage Bulkhead Install inside Downtube
M 34-20201 1 36.4 Seat Collar
Exploded Diagram of Bronson
Linkage Hardwear
label part_number quantity torque name blurb
A 26-20122 2 16 Nm M10x23 Screw Apply Loctite 242 to threads only, apply grease to shaft only
B 26-22461 2 20 Nm M8x45 Shock Bolt Apply Loctite 242 to threads
C 08-22343 1 20 Nm Pivot Axle M15x91 Apply Loctite 242 to threads only, apply grease to shaft only
D 08-16291 1 20 Nm Pivot axle M15x68.5 Apply Loctite 242 to threads only, apply grease to shaft only
E 08-16292 1 20 Nm Pivot axle M15x80.5 Apply Loctite 242 to threads only, apply grease to shaft only
F 26-15633 3 M6 Tapered Washer Apply grease to surface
G 26-11817 3 M6 Washer
H 26-15947 3 9 Nm M6x20 SHCS Apply Loctite 242 to threads
I 26-21452 1 M8x2 Flip Chip NDS Apply grease to surface
J 26-15532 1 M5x5 Set Screw Apply Loctite 242 to threads, titghten until flush
K 26-19207 2 Hose Grommet
Exploded Diagram of Bronson
Rear Axle, Shock Fender, Chainstay Protector
label part_number quantity name blurb torque
A 08-22209 1 Rear axle 12x173.7 Apply grease to shaft and threads
B 23-23491 1 SCB UDH Interchangeable with Sram UDH
C 26-23492 1 SCB UDH screw Reverse thread 20 Nm
D 30-20361 1 Chainstay Protector
E 26-15939 1 M3x12 BHCS Apply grease to treads 0.5 Nm
F 26-18382 2 M4x12 BHC Apply grease to treads 0.65 Nm
G 49-21567 1 Lower Link Fender
H 30-21453 1 Seatstay Protector
Exploded Diagram of Bronson
Upper Link
label part_number quantity name blurb
A 29-22534 1 Upper Link
B 11-12681 2 6900-2RS Bearing
C 26-15533 2 M10x3 Washer Apply grease to inner surface
D 11-12218 2 6902-2RS Max Bearing
E 26-11612 2 Bearing Dust Shield Apply grease to inner surface
F 26-17012 1 15x34.25 Bearing Spacer
Exploded Diagram of Bronson
Lower Link
label part_number quantity name blurb torque
A 29-22533 1 Lower Link
B 11-17708 4 6902-1ZR Bearing
C 26-11612 4 Bearing Dust Shield Apply grease to inner surface
D 26-19126 1 15x28 Bearing spacer
E 26-17013 1 15x40.25 Bearing Spacer
F 26-15532 1 M5x5 Set Screw Apply Loctite 242 to threads, titghten until flush
G 26-12678 1 M6 Grease Fitting 9 Nm
Exploded Diagram of Bronson

Manuals & Files

If you're looking for more information about your bike check our the Santa Cruz Bicycles Owner's Manual.