SIR 9

‘Betting for the authentic’

SIR 9

 

All we can expect from a quality steel frame is offered by the SIR 9. Very manageable and extremely versatile, with this bike we can enjoy comfortably and accurately the most fun trails but also the most demanding ramps. Rolling with her we will check that not everyone needs full suspension bikes and long trips, that you can also enjoy a good level mountain bike at a reasonable .

The S.I.R. tubing is a custom-selected set that utilizes the best tube options for each application within the frame.

2.999,003.999,00Select options

‘Very manageable and extremely versatile’

Slate Orange

Sir 9

At a time when carbon super bikes (including our own flagship models) dominate the stage, why would Niner shine a spotlight on the SIR 9? Perhaps it’s better to ask “just what is it about steel bikes?” Why, when we get on a steel frame, are we instantly transported back to that first bike we had as a kid? Why is steel just as relevant today as it was 50 years ago while other materials have come and gone?

There wasn’t anything wrong with our SIR 9 – like other Ninerds we ride it and love it. But something about Steel being equated with Retro seemed almost unfair to such a great bike. There is simply no reason frames built with one of the best metals on the planet shouldn’t benefit from and take full advantage of cool technologies like updated headsets standards, tapered forks and through axles.

Introducing the new SIR 9 – all the fun, all the advantages, all the steel.

NEW TUBESET WITH AWARD WINNING NINER GEOMETRY

All steel is not created equal. The SIR 9 tubing is a custom-selected set that utilizes the best tube options for each application within the frame.

For the front triangle, we employ the new Reynolds 853 DZB (Double Zone Butting) tubing. Developed for mountain bikes, and specifically 29ers, Reynolds 853 DZB offers two significant advantages:

Downtube fork clearance in 29ers is tricky because of the relatively high HT-to-BB height. A straight downtube needs to be welded high on the back of the headtube to achieve fork clearance, often requiring either a gusset between the headtube and the downtube or a thicker heavier downtube to achieve desired strength. The Reynolds 853 DZB tube overcomes these limitations by incorporating two different butting profiles on the same downtube– extra strength at the headtube combines with a butting profile in the rest of the tube that maintains ride quality and avoids weight penalties – strong where we need it, compliant where we want it.

Another advantage and a significant first for this 853 DBZ tube is the proprietary bend. We worked with Reynolds to shape this tube for the SIR 9 so the tube can attach lower on the headtube, reducing front end torsional flex, increasing steering precision and adding strength.

For the stays, we incorporate steel custom bent in 3 dimensions – with investment cast bridges and dropouts – for ride quality and tire clearance. This shaping is proprietary to Niner and is not found on other steel mountain bikes. When combined with the new dropout system, provides superior power transfer while preserving the compliant ride quality you want in a steel frame.

When combined with Niner’s hardtail geometry expertise, the result is a new frame that is sure to win as many Rider’s Choice awards and great reviews as has the first SIR 9.

Attention to detail

While tubing upgrades are the focus of this new design, we haven’t forgotten the details. The new the SIR 9 uses 142×12 spacing with an included maxle for added rear-end torsional stiffness, post mount brake bosses between the chain and seatstay for braking precision, and, of course, the Niner headbadge and two great color options for that finishing touch.

SIR 9 NX1 / 2.999 €

+ TECHNICAL SPECS

Frame Sir 9 Reynolds 853 Steel Boost


Fork Rockshoxs Revelation RC 120mm


Wheels American Terrain 15/12×148 XD


Tires Schwalbe Nobby Nick 29×2.25 Snake Skin Tubeless


Tube Notubes


Brakes Formula CR1


Front disc Formula 180 fixed/ Rear disc Formula 160 fixed


Pedalier Sram NX  PF30 175mm 30T


Bottom Bracket Sram PF30


Front derailleur


Chain Sram PC1110 11v.


Cassette Sram PG1130 11-42 11v.


Rear derailleur Sram NX 1×11


Shifters Sram NX Trigger


Cables Standard


Stem TFHPC +-5º 80mm


Handlebar TFHPC Alu 710 mm


Grips TFHPC silicone


Headset Niner Integrated


Spacers TFHPC Alu


Seatpost TFHPC Comp 30.9×410


Saddle WTB Volt Comp Niner


Clamp Niner


Sizes S / M / L / XL


Colors Slate Orange


SIR 9 GX EAGLE/ 3999 €

+ TECHNICAL SPECS

Frame Sir 9 Reynolds 853 Steel Boost


Fork Formula Selva 120mm


Wheels American Wide Lightning 15/12×148 XD


Tires Schwalbe Nobby Nick 29×2.25 Snake Skin Tubeless


Tube Notubes


Brakes Formula Cura


Front disc Formula 180 fixed/ Rear disc Formula 160 fixed


Pedalier Sram GX Eagle PF30 32T 175mm


Bottom Bracket Sram PF30


Front derailleur


Chain Sram GX Eagle PF30 32T 175mm


Cassette Sram XG1275 10-50T


Rear derailleur Sram GX Eagle


Shifters Sram GX Eagle Trigger


Cables Standard


Stem Niner 80mm Slate Grey


Handlebar Niner Flat Carbon Moondust grey


Grips Niner All Mountain


Headset Niner Integrated


Spacers TFHPC Alu 710 mm


Seatpost Rockshoxs Reverb 30,9


Saddle Ergon SME


Clamp Niner


Sizes S / M / L / XL


Colors Slate Orange


(The components shown in the images may change from the originals that does present the list)

BUY ONLINE YOUR SIR 9

FROM 2.199 €

BUY ONLINE YOUR SIR 9

FROM 2.199€

2.999,003.999,00Select options

DO YOU WANT MORE?

CONFIGURE YOUR NEW SIR 9

Niner Configure is a fast, safe and totally professional tool that lets you customize any of the Niner models the way you want it. Niner Configure makes it easy. Design your complete bike from A to Z and make the most of any Niner frame!

Niner Configure is a fast, safe and totally professional tool that lets you customize any of the Niner models the way you want it. Niner Configure makes it easy. Design your complete bike from A to Z and make the most of any Niner frame!