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Santa Cruz Bicycles
Heckler MX CC XX Eagle Transmission Reserve E-Bike

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Why We Like The Santa Cruz Heckler MX CC XX Eagle Transmission Reserve E-Bike

Ride further and faster, expend less energy, and have more fun; E-bikes may get some hate, but there is no denying the benefits they bring to the mountain biking world. We love the Santa Cruz Heckler for its ability to boost our ride experience by allowing us to reach previously out-of-reach trails while still behaving like a top tier mountain bike. The Heckler recently saw some geometry improvements, making the chainstays longer, the head tube slacker, and the reach longer, all aiding in both downhill and uphill performance. With a slack 64.8-degree head tube angle and a 76.7-degree seat tube angle in the high setting, the Heckler allows us to shred the downhills while keeping us in an efficient position when climbing. The Shimano EP8 motor is more powerful and lighter than previous versions and features Eco, Trail, and boost modes so we can use the optimal amount of power for our terrain. A bigger 730Wh battery means we can extend our ride to the next peak without worrying about losing power or getting tired, and the battery is interchangeable, so we can take it out and plug in a fresh one.

The CC MX XX Eagle Transmission build of the Santa Cruz Heckler is a do-it-all E-bike and features some of the most impressive components on the market. This model of the Heckler is equipped with Santa Cruz's premium Carbon CC frame for the lightest weight and stiffest frame possible and is also a mixed wheel build, featuring a 29-inch wheel up front for rollover capability and a nimble 27.5-inch wheel in the rear for agility. Santa Cruz fitted this version of the Heckler with SRAM's brand-new XX Eagle Transmission AXS drivetrain, providing us with the most precise and reliable electronic shifting on the market. Next, Reserve's carbon wheels and Industry Nine's Hydra hubs combine to make a top-quality wheelset that is durable, stiff, and lightweight. Maxxis tires provide reliable grip on the descents, and the rear DHRII tire features a Double Down casing for extra flat protection. The RockShox Zeb Ultimate, 160mm fork, and RockShox Super Deluxe Ultimate rear shock bring us top-tier suspension performance from RockShox and allow us to plow through chunky trails without worry.

*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.


  • Electric mountain bike with aggressive geometry and top-tier components
  • Premium Carbon CC frame for the stiffest and lightest frame possible
  • 150mm of VPP suspension is efficient both up and downhill
  • Mixed-wheel build gives us the best of both worlds
  • SRAM XX Transmission AXS drivetrain for flawless shifting
  • RockShox Super Deluxe Ultimate rear shock plows through chunk
  • Reserve carbon wheels with Industry Nine Hydra hubs will turn heads
  • RockShox Zeb Ultimate gives us premium suspension performance
  • Item #SNZK1KO
Frame Material
Carbon CC
Rear Shock
RockShox Super Deluxe Ultimate
Rear Travel
RockShox Zeb Ultimate
Front Travel
Chris King DropSet 3 Integrated
SRAM Transmission AXS Pod controller
Rear Derailleur
SRAM XX Transmission AXS T-Type, 12-speed
Shimano Display EM800AD
Eco, Trail, Boost
Drive System
Shimano Drive Unit DU-EP801
Battery Type
Darfon Integrated Battery
Battery Energy
SRAM XX Transmission AXS T-Type, carbon
Chainring Sizes
Crank Arm Length
Bottom Bracket
SRAM XX Transmission AXS T-Type, XS-1297, 12-speed
Cassette Range
SRAM XX Transmission AXS T-Type, 12-speed
[front, rear] Magura MT7 Pro
Brake Type
[front, rear] Magura MDR-P 6-Bolt 203mm w/magnet
Santa Cruz Di2 35mm, carbon
Handlebar Rise
Handlebar Width
Santa Cruz Bicycles House Grips
Industry Nine A35
Stem Length
WTB Silverado Medium, titanium rails
RockShox Reverb AXS 31.6mm
Seatpost Travel
[small] 125mm, [medium] 150mm, [large, x-large, xx-large] 170mm
[front] Reserve 30HD, 28H, 29in, carbon, [rear] Reserve 31DH, 32H, 27.5in, carbon
[front] I9 Hydra 28H, [rear] I9 Hydra, XD, 32H
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tire Clearance
[rear] 2.6in
[front] Maxxis Assegai 3CG, EXO+, TR, [rear] Maxxis Minion DHRII, 3CT, DD, TR
Tire Size
[front] 29 x 2.5in, [rear] 27.5 x 2.4in
not included
SRAM eTap Powerpack 1 Battery and charger, Glovebox frame storage, Tool Wallet, Tool Purse, downtube protector, chainstay protector, Shock fender, Flip Chip, SRAM UDH compatible, Darfon Charger
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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