2018 Niner
SIR 9 3-STAR
A 27.5″ steel frame hardtail trail bike with high-end components.
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| MSRP | $3,950 |
|---|---|
| Frame | Steel |
| Suspension | Hardtail, 120mm |
| Fork | Fox Factory Float 34 |
| Wheels | 27.5″ |
| Drivetrain | 1 × 12 |
| Groupset | GX Eagle, Truvativ Stylo |
| Brakes | Hydraulic Disc |
| Seatpost | Dropper |
For This Bike
Oct 2018
I have to admit — I am somewhat of a crusty old dude and sometimes resist change until it has been thoroughly tested by others. This being the case, I was a bit doubtful when I first climbed on the Niner SIR 9, a steel hardtail that can run 27.5-plus or 29-inch wheels. The 27.5x 2.80 tires seemed like overkill compared to my super-light 29er race bike, and the thought of riding a bike that wasn’t fully suspended had me questioning my sanity.
Oct 2017 · Cass Gilbert
Like steel hardtails? We test the Niner SIR 9, boasting a modern, slack geometry, room for 27.5+ tires, and a host of bikepacking-friendly details.
Although its gear range is excellent, SRAM XO1 Eagle feels built for racing rather than bikepacking. It’s fiddly to set up and sensitive to cable stretch.
Press fit bottom bracket requires specialist tools that may be hard to find in the backcountry.
While an eccentric insert is available, none of the standard builds include it.
Jun 2017
News out of the Niner camp today. The Colorado-based bike maker has re-released its original steel classic, the SIR 9, in a redesigned, ready for anything form. - Mtbr.com
| Frame | SIR 9 - SLATE BLUE/ORANGE BB Standard: PF30, Press Fit Tire Clearance: 2.4" |
|---|---|
| Fork | FOX 34 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM Travel: 120mm Spring Type: Air |
| Shock | N/A Spring Type: Air |
| Bottom Bracket | SRAM%20PF30 |
| Headset | NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40 |
| Stem | RACE FACE AEFFECT R 50MM, 35MM CLAMP |
| Handlebar | RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP |
| Saddle | NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC |
| Seatpost | KS LEV SI Type: Dropper |
| Crank | SRAM STYLO 7K EAGLE PF30 32T |
|---|---|
| Shifters | SRAM GX EAGLE 12SP |
| Cassette | SRAM EAGLE XG 1275, 10-50T |
| Chain | SRAM GX EAGLE 12SP |
| Brakes | SRAM GUIDE R Type: Hydraulic Disc |
| Brake Levers | SRAM GUIDE R |
| Tires | 29" MAXXIS ARDENT DC/EXO/TR 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8 |
|---|
Last updated March 30
Not listed for 2,206 days