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Niner ROS 9 4-Star XO1 (2014)
General
| Product Category | |
|---|---|
| Brand | Niner |
| Model | ROS 9 4-Star XO1 |
| Size | S, M, L, Xl |
| Color | Rally Blue |
| Bottom bracket | SRAM GXP, NINER BIOCENTRIC II |
|---|---|
| Brake levers | SRAM ELIXIR 9 TRAIL |
| Brake rotor | SRAM, 180/160MM G2 |
| Brakes | SRAM ELIXIR 9 TRAIL hydraulic disc |
| Cassette | SRAM XD- 1195 11spd 10-42t |
| Chain | SRAM PC1170 |
| Crankset | SRAM X1 32t |
| Features | CONSTRUCTION DETAILS ABOUND: We borrowed the unique dropout design we developed for the SIR 9 to allow 142x12 Maxle use and house the stout alloy derailleur hanger. The dropout designs allow the chain stays and seat stays to be welded at any angle and provide far more surface area for a full weld around the tube’s end. The front derailleur hanger is removable with an alloy cover. Internal dropper post routing is optional, another alloy cover closes the port if you choose not to use it. Externally routed dropper posts utilize mounts under the top tube. Tabs under the bottom bracket shell accept a proprietary MRP XCG bash guard for optional extra protection. Full-housing cable routing for front and rear derailleurs using Niner’s bolt-on double housing clamps along top and down tubes complete the versatility. If you don’t need the guides, take them off and enjoy the clean look of theframe in single-speed mode. OVERSIZED HEADTUBE: The oversized headtube of the ROS 9 allows the use of tapered fork steerer tubes that measurably reduce fork deflection, which means your Niner tracks straight and true. The full spectrum of riders from xc racers to all mountain shredders benefit from these features which is why we incorporate the technology in all our new frames. The ROS 9 Lets you take full advantage of increased steering precision as you get yourself into trouble. The hardtail for riders that don’t like hardtails. No twitchy high-posting around features you would hit on your “real” bike. No need to back off because your XC racing head angle prevents solid roosting. The ROS 9 won’t judge your lines - it lets you write checks your skills might not be able to cash, and what is more exhilarating than that? Short chainstays, slack head angle, and oversized headtube nourish these Roots of Steel - all with the ability to tweak the geometry via the BioCentric II. Run this rig single-speed, 1x or fully geared with a front derailleur if you roll that way. Remove the cable guides and front derailleur mount if you don’t. Stealth routing for the dropper post keeps the ROS 9 fresh and clean. Sorry, the ROS 9 is not compatible with heart-rate monitors or training plans but it will certainly earn you some PRs when you do your part keeping the rubber side down. Ride Over S*!t – The new ROS 9 injects hardtails with a huge-ass dose of fun. BIO-CENTRIC II BOTTOM BRACKET SYSTEM: The Niner BioCentric II makes adjustments easy across a wide range of gears and eliminates the need for adjustable dropouts, giving the cleanest possible solution for singlespeed use. No bolt on hubs, no chain tensioners cluttering your ride, no brake adjustments with gear changes. Additionally, BB positioning allows fine-tuning of geometry. Want shorter chainstays? A lower BB? Steeper or slacker seat angle? It’s all achievable with the BioCentric II. Greater Range - The BioCentric II offsets the bottom bracket spindle 8.5mm from center, offering greater range of adjustment compared to a traditional EBB setup. More offset is a boon when changing gears without having to change chain length and it allows riders to make more noticeable changes to frame geometry. Reliable Function - Traditional EBB units are held in place with set screws that can become difficult to finely adjust over time, or expansion wedges that can deform the bottom bracket shell of the frame. Split bottom bracket shells that clamp an EBB can stretch or ovalize. The Bio-Centric II avoids these troubles by using two bolts to apply a clamping force on the outside edges of the BB shell, eliminating the possibility of ovalizing or indexing the shell itself. |
| Fork type | ROCK SHOX REVELATION RCT3 SOLO AIR, 130MM, 15MM, RALLY BLUE |
| Frame type | NINER ROS 9 Steel |
| Hub front | Stan's, QR15 |
| Hub rear | Stan's, 142x12mm |
| Rear derailleur | SRAM XO1 11spd |
| Recommended for | XC Mountain |
| Rims type | Stan's NOTUBES 3.30/ZTR FLOW EX |
| Saddle | WTB VOLT RACE |
| Shifter | SRAM XO1 11spd |
| Spokes | Stan's |
| Stem | NINER ALLOY |
| Tires | SCHWALBE NOBBY NIC SNAKESKIN TL 2.35 |
