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Cycle Monkey

Internal Gearing Specialists, Bicycle Distribution & Service Center

9:ZERO:7 Fat Bike w/ Rohloff SPEEDHUB 500/14 XL & Gates Carbon Drive

This 9:ZERO:7 Slider was built for a customer in Herndon, Virginia. seeking an adventure fat bike that would stand up to any obstacle he might encounter off the beaten path. Low maintenance and dependability were top priorities. The rider already had the frame set in hand, so he sent it in to be built up with a Rohloff SPEEDHUB 500/14 XL internal gear hub and Gates Carbon Drive belt drive. With this extremely durable drivetrain, a rigid fork, and large volume tires for comfort and traction, this bike can handle virtually any terrain with almost no maintenance.

Named after the area code covering the entire state of Alaska, 9:ZERO:7 is a fat bike and adventure brand started by Chain Reaction Cycles in Anchorage, Alaska. The brand gained a global customer base after they began selling fat bikes on their aptly named website, fatbikes.com, and they've expanded from there to offer a full line of all-conditions adventure machines perfect for the rider who's willing to get out there no matter what mother nature has in store. They offer several aluminum and carbon models.


The 9:ZERO:7 Slider frame is aluminum, with symmetric, 170mm-spaced sliding dropouts. It represents an evolution from the original Slider frame, which featured 135mm dropout spacing and an offset rear triangle. Quick release dropout inserts make the frame compatible with Rohloff's Speedhub XL fat bike hub, while the adjustable nature of the dropouts combine with a joint where the dropout connects to the seat stay to make belt installation and tensioning a breeze.

The Slider is designed to be rigid-specific and has a fairly upright seating position, longer chain-stays, rack/fender/ water bottle mounts, and full cable housing, which make for a comfortable, functional off road adventure bike.


Wanting to complement the incredible capabilities of the frame and drivetrain, our Wheel House put together a custom set of hoops for this bad boy. We started with 100mm-wide Surly Clown Shoe rims built onto a Hope Pro 2 Fatsno hub up front and the fat bike-specific Rohloff SPEEDHUB 500/14 XL out back. Sapim Race spokes and brass nipples pull everything together, and 
Surly's Bud and Lou 26" x 4.8" tires were an ideal choice for all-season traction.



Rohloff's SPEEDHUB XL is especially well-suited for fat biking, with a sealed shifting system that protects shifting components from the deep sand, mud, dirt, and other contaminants fat bikes often encounter. With a 526 percent gear range and hardened steel internal gear wheels, the SPEEDHUB provides versatility and dependability in even the most demanding riding conditions.

With the addition of the Gates Carbon Drive belt, which has a usable lifespan at least twice as long as a conventional chain and does not require lubrication, this rider is enjoying one of the most dependable drivetrains available.

To finish off this versatile build, we used parts that prioritized comfort and simplicity. Jones' Loop H-Bar offers multiple hand positions for all-day riding comfort, especially when combined with ESI Extra Chunky grips. Avid's BB7 Mechanical disc brakes and easy to set up and maintain, and are impervious to extreme cold.

This customer came to us with a specific frame and type of riding in mind and knew he wanted a Rohloff and Gates Carbon Drive system. He just wasn't sure how to fill in the missing pieces and spec the full build. We love taking on these puzzles with our customers, whether their looking for a an adventure machine like this beauty, a dependable daily commuter, or a custom e-bike that will turn heads with every ride. If you have a vision for your next build and need help making the final component decisions, drop us a line and let's get started! 

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Build Details: 

• Frame: 9:ZERO:7 Slider
• Fork: 9:ZERO:7 Carbon Fork
• Headset: Cane Creek 40
• Stem: Race Face Ride
• Handlebar: Jess Jones Loop H-Bar
• Shifter: Rohloff Twist
• Grips: ESI Extra Chunky Grips
• Seat post: Race Face Ride
• Saddle: WTB Pure-V
• Front Hub: Hope Pro 2 Fatsno
• Rear Hub: Rohloff SPEEDHUB 500/14 XL
• Spokes: Sapim Race
• Nipples: Sapim Brass
• Rims: Surly Clown Shoe
• Tires: Surly Bud/Lou
• Cranks: Race Face Aeffect
• Pedals: A-Flat Acros
• Bottom Bracket: Race Turbine
• Chainring: Race Face Direct Mount Spider
• Rear Sprocket: Gates Carbon Drive
• Chain: Gates Carbon Drive
• Brakes & Levers: Avid Speed Dial 7