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Santa Cruz Bicycles
Bronson GX Eagle Transmission Reserve Mountain Bike

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Current price: $6,399.00 Original price: $7,999.00
20% off
Color:Gloss Chalk White


Size Chart


Why We Like The Santa Cruz Bronson GX Eagle Transmission Reserve Mountain Bike

From enduro days with huge elevation gains and descents to casual trail rides, the Bronson's mid-travel design, efficient suspension platform, and mixed-wheel setup make it a blast to ride on any trail. With 150 millimeters of VPP suspension, the Bronson is at home descending technical trails and is perfectly capable of making climbing back up a breeze. A 64.7-degree headtube angle and long wheelbase sticks our front wheel out in front of us for confidence and stability on steep descents. A size-specific seat tube angle, sitting at around 77 degrees, puts us in an efficient pedaling position, allowing us to conquer steep and technical climbs easier. Size-specific chainstay lengths mean every rider on a Bronson can have the same agile rear end and balanced platform, no matter our size frame. The Bronson's mixed-wheel setup gives us the best of both worlds, with the 29-inch front tire handling the rollover capability and the 27.5-inch rear tire enhancing the turn radius and agility. Other notable features of the Bronson's frame include a Glovebox frame storage for easy access to our riding essentials and a Sag Window for making sag reading and setup easier. The Bronson includes an integrated chainstay and downtube protector to protect our bike from rock strikes and chain slaps, and a shuttle guard allows us to throw our bike over the back of our tailgate and shuttle to the trailhead worry-free. When the day calls for getting a bit rowdy, we turn to the flip chip in the rear shock link that allows us to adjust our geometry, making the bike slacker, longer, and lower to give us extra confidence on steeper and more technical trails.

The GX Eagle Transmission Reserve build of the Santa Cruz Bronson is equipped with quality components and an electronic drivetrain at a more budget-friendly price point than the top-tier builds. Santa Cruz's Carbon C frame utilizes quality carbon fiber to give us a stiff and lightweight frame, and the Carbon C version is built to the same standards as the premium Carbon CC frame for reliability. SRAM's GX Transmission AXS drivetrain gives us the latest technology in the electronic drivetrain market, providing flawless shifting even under load, an auto-adjusting clutch in the derailleur that aligns it back in the proper position should it get misaligned after a crash, and a nearly bombproof design. Reserve 30 HD rims and Industry Nine 1/1 hubs take this build sky high and give us a race-worthy wheelset that is lightweight, has high engagement, and has a durable construction. Maxxis DHF and DHRII tires provide confidence in ripping through corners and dropping technical descents by throwing down tons of grip. Finally, RockShox's Select+ line gives us quality suspension performance at an obtainable price point, with the Super Deluxe Select+ rear shock soaking up trail chatter and keeping us gripped to the ground and a Lyrik Select+, 160mm fork making quick work of big hits.

*Due to a high demand in the global supply chain and bike industry since the start of the pandemic, material weight and exact components are subject to change. We are working diligently to keep tech specs updated, and any adjustments will be of equal or better spec level. If you have any questions, reach out to a Gearhead by chatting online or calling 1-888-276-7130.


  • Mid-travel bike with aggressive geometry for all-mountain riding
  • Carbon C frame uses quality materials for a stiff and lightweight frame
  • 150mm of VPP suspension is an efficient climber and ruthless descender
  • Mixed wheel setup gives us the best of both worlds for agility and speed
  • SRAM GX Transmission AXS drivetrain for flawless electronic shifting
  • Reserve 30 HD carbon rims are super durable and lightweight
  • RockShox Lyrik Select+,160mm fork handles big hits with ease
  • Size x-small is only offered with a 27.5in wheelset
  • Item #SNZK1LK
Frame Material
Carbon C
Rear Shock
RockShox Super Deluxe Select+
Rear Travel
RockShox Lyrik Select+, 160mm -or- Fox 36 Performance Elite
Front Travel
Cane Creek 40 IS Integrated
SRAM AXS Pod Controller, 12-speed
Rear Derailleur
SRAM GX Eagle Transmission AXS T-Type, 12-speed
SRAM GX Eagle Transmission DUB T-Type Crankset, alloy
Chainring Sizes
Crank Arm Length
Bottom Bracket
SRAM GX Eagle Transmission T-Type, XS-1275, 12-speed
Cassette Range
SRAM GX Eagle Transmission T-Type, Flattop, 12-speed
SRAM Code Bronze Stealth
Brake Type
[front] SRAM HS2 200mm, [rear] SRAM HS2 180mm
Santa Cruz Carbon
Handlebar Rise
[small] 20mm, [medium, large, x-large] 35mm
Handlebar Width
[small] 760mm, [medium, large, x-large] 800mm
Santa Cruz Bicycles House Grips
Burgtec Enduro MK3
Stem Length
WTB Silverado, CroMo
OneUp V2 Dropper Post, 31.6 -or- Reverb Stealth -or- Fox Transfer
Seatpost Travel
[small] 125mm, [medium] 150mm, [large] 175mm, [x-large] 200mm
[front] Reserve 30 HD 29in, carbon [rear] Reserve 30 HD 27.5in, carbon
[front] DT Swiss 370, torque Cap, 6-Bolt, 28h, [rear] DT Swis 370, XD, 6-Bolt, 36t, 28h
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tire Clearance
[rear] 2.6in
[front] Maxxis Minion DHF WT, 3C MaxxGrip, EXO, [rear] Maxxis Minion DHR II , 3C MaxxTerra, EXO
Tire Size
[front] 29 x 2.5in, [rear] 27.5 x 2.4in (size x-small only offered in 27.5in)
not included
Glovebox integrated frame storage, tool wallet, tube purse, downtube protector, chainstay protector, shock fender, shuttle guard, Flip chip, SRAM UDH compatible
trail, enduro
Manufacturer Warranty
[frame, handlebar, bottle cage] limited lifetime, [paint, finishes, decals] limited 3 year, [Reserve Carbon Wheel] limited lifetime

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