Niner SIR 9 trail bike launched
Niner’s new shred-ready hardtail can accommodate 29er or 27.5+ wheels.
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.
It can also carry a whole lot of stuff.
Built from Reynolds 853 steel, Niner says the hardtail SIR 9 is balanced, playful, and confidence inspiring. The bike uses the same trail geometry that was developed for the RIP 9 and JET 9 trail bikes. It also has boost hub spacing for 27.5+ and 29er wheels. And it boasts a whopping 18 mounting options for bottles, bags, racks, and fenders. Let the bike packing adventures begin.
Frame material is tried and true Reynolds 853.
For more info head to www.ninerbikes.com. Here’s a rundown of key features, plus a list of build options, and lots of photos.
Key Features
- Redesigned bottom bracket/chainstay junction increases stiffness
- PF 30 BB allows you to run a standard BB or, eccentric BB for singlespeed
- Nearly unified yoke which allows for longer and stronger welds to the bottom bracket
- Hidden plate in yoke adds to the stiffness
- Tapered head tube allows riders to keep up with fork technology
- Reynolds 853 steel provides the supple, comfortable ride
- Compatible with 29×2.4 Or 27.5X3.0 tires
- Integrated bag mounts inside front triangle
- Bento box mounts on top tube offer additional storage options
- Compatible with 1x (max ring 36t) and 2x (26/36 or bigger) drivetrain systems
//www.youtube.com/watch?v=kpeUcXv61OY
Key Tech Specs
- 73mm PF30 BB shell (adaptors required for BSA type BBs)
- Compatible with Biocentric 30 for singlespeed use
- 30.9 seat post
- 31.8 seat collar
- 34.9 front derailleur clamp
- 1.125” X 1.5” Tapered zero stack head tube, 44mm upper, 56mm lower, cane creek description: ZS44/28.6 ZS56/40
- 34.9 Side swing, front pull front derailleur
- Post mount disc brake – 180mm max rotor size
- All sizes have 2 inner triangle bottle mounts, 1 mount under down tube
- Can fit up to a 29×2.4 or 27.5×3.0 tire (tire sizes vary by brand, some tires may not fit)
- Compatible with standard 1x (36t max), 2x and 3x systems
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