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RIP 9 4-Star X01 Complete Mountain Bike - 2014

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Rip, wash, and repeat.

Big-wheel evangelist Niner may have a reputation for its frames, but with the RIP 9 4-Star X01 Complete Mountain Bike, Niner proves that it's just as serious about its complete offerings. This aluminum framed trail bike features an assortment of RockShox and FOX's finest suspension that's been rounded off with Stan's NoTubes wheels and SRAM's new X01 eleven-speed drivetrain. All you have to do is ride it. And trust us, you want to.

At the heart of this bike is the widely popular RIP 9 frame. And it's not popular by accident -- the list of features reads like a wish list for trail riders the world over. Starting with Niner's patented Constantly Varying Arc (or CVA) suspension platform, you get 125mm of travel. And the feel is decidedly different than many other five-inch travel trail bikes. It's a suspension system that's optimized specifically for 29-inch wheels, so you're not dealing with a bike that was designed for smaller wheels and adapted to fit bigger hoops. The result is that Niner takes advantage of the improved rollover characteristics of larger wheels, and in turn, tunes its suspension to have a firm, efficient feel. Niner placed extra stiff links in positions that isolate pedaling forces, while remaining fully-active under all conditions. Notice that the lower-link sits below the bottom bracket. This places the CVA's instant center in a virtual position located ahead of the drivetrain, causing chain tension at the rear axle to pull the two linkages in opposite directions to effectively isolate the drivetrain from the rear triangle. This means that when you stomp on the pedals, no energy is wasted, but you still have plenty of travel in reserve for when you miss your line.

It's around half-a-pound heavier the carbon fiber RIP 9 RDO frame, so the alloy RIP 9 is no heavyweight. But, despite its light overall weight, the air-formed tubing and oversized hardware mean that this is a bike that's ready to be ridden hard, day-in and day-out. The 142x12mm dropouts boost stiffness, and the Maxle rear axle ensures that wheel changes are as fast as ever. You'll find a 30.09mm seatpost, which means that you have options should you upgrade to a dropper post. And whether you prefer a front derailleur or a one-by drivetrain, the S3 low-direct derailleur mount and ISCG05 chain guide mount leave the choice up to you. And for the headset, the ZS44 top cup and ZS56 bottom cup ensure compatibility with the latest generation of tapered forks.

A bike this trail-worthy deserves a build kit to match. And with the new SRAM X01 drivetrain, that's not a concern. Building off of the venerable XX1 eleven-speed drivetrain, X01 features the same 42/10t XD cassette for a massive gear range with a single chainring up front. You'll enjoy flawless shifts and chain retention with the clutch derailleur and alternating narrow-wide tooth profile on the chainring. Stopping duties are handled by SRAM's four piston Elixir 9 Trail brakes, which deliver tons of power with a surprising level of control. The RockShox Monarch RT3 rear shock is well matched by the stiff and adjustable FOX 34 TALAS CTD fork. This fork's travel adjust feature makes it easy to lower your front end for precise climbing, then extend back to full travel when you're heading back down. The wheels are Stan's NoTubes Flow EX's, which pair well with today's larger sized tires, while also having the added benefit of being a breeze to setup tubeless. Lastly, the cockpit is rounded out with Niner's excellent handlebar, stem, and seatpost. In case it wasn't already clear, you won't need to upgrade. Like the name implies, this rig is ready to 'rip,' straight out of the box.

The Niner RIP 9 4 Star Complete Mountain Bike is available in four sizes from Small to X-Large and in the color Niner Green.

Frame Material
Rear Shock
RockShox Monarch RT3
Rear Travel
125 mm
Front Travel
[TALAS 2-position Travel Adjust] 140/110 mm
Zero Stack tapered
Rear Derailleur
32 t SRAM X01
Bottom Bracket
not included
10-42 t SRAM XD-1195
SRAM PC-1170
Brake Set
Avid Elixir 9 Trail
[front] 180 mm Avid G2, [rear] 160 mm Avid G2
Niner flat-top alloy
Handlebar Width
780 mm
Niner Grrrips
Niner Alloy
WTB Volt Race
Niner Carbon
Seat Collar
34.9 mm
Stan's NoTubes 3.30 ZTR Flow EX
[front] 15mm thru-axle, [rear] 12x142mm thru-axle
Schwalbe Nobby Nic Snakeskin TL
Tire Size
29 x 2.35 in
Recommended Use
all-mountain and trail riding
Manufacturer Warranty
2 years on frame

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