Niner Bikes Updates Classic Steel SIR 9 Hardtail Singletrack Magazine


2019 Niner SIR 9 GX Eagle Jenson USA Exclusive Bike Reviews, Comparisons, Specs Mountain

The S.I.R. 9 is the most versatile bike in the Niner stable, fusing the "steel is real" feel of Reynolds tubing with the ability to run the frame as either a geared bike or single speed. The S.I.R. 9 uses the same custom drawn Reynolds 853 tubing as the M.C.R. 9 and combines it with Niner's ultra-light eccentric bottom bracket.


2019 Niner SIR 9 4Star

Susan Miller February 22, 2021 In early 2017, the SIR 9 had vanished from Niner's website, shocking and confusing more than a few fans of this steel-framed classic. It wasn't until June that Niner officially released its newly revamped SIR 9, and with the dust settled, it was time for Dirt Rag to see how this classic has evolved.


Niner SIR 9 Review, Tested on the Colorado Trail

The SIR 9 is perfect for just about any type of riding, no matter how long or short. It's a butt-kicking, grin-inducing lunch ride launch pad when you only have 30 minutes to burn in the back lot. It's also made for multi-day missions in the backcountry. And it's made to make you happy the minute you throw a leg over it.


TESTED Niner SIR 9 Australian Mountain Bike The home for Australian Mountain Bikes

Reviews, ratings, specifications, weight, price and more for the 2020 Niner SIR 9 4-Star Bike


Niner SIR 9 Review, Tested on the Colorado Trail

Niner SIR 9 Frame 2021: Made from metal. SIR 9 is made from rugged, reliable, comfortable Reynolds 853 steel.


Niner SIR 9 27.5+ 2Star Mountain Bike 2019 Bike

Niner's eccentric bottom bracket lets you drop your gears if simplicity is your thing. Niner's iconic SIR 9 is the most recent to take advantage of those trends. Now built around a 120 millimeter fork, the new SIR 9 got, you guessed it, longer, lower, and slacker. Boost spacing and a refined bottom bracket / chainstay junction shrank the rear.


Niner Sir 9 2 Star Bike 2020 Jenson USA

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. Read Review


Niner SIR 9 Review, Tested on the Colorado Trail

Silky steel big-wheeler


Niner SIR 9 Review, Tested on the Colorado Trail

Niner has revamped their entire line over the past year or so, and the latest bike to receive a reboot is the SIR 9 hardtail. The SIR has been in Niner's catalog pretty much since the beginning as a classic XC steel hardtail. Then, a few years ago Niner introduced the ROS 9, a steel hardtail with much more aggressive intentions.


Niner Bikes 2020 SIR 9 2STAR Hardtail Mountain Bike (Cement/Black/Copper) (XL) [03129200620

Niner's latest SIR 9 is the company's third iteration on their cult classic hardtail. For 2017, it retains the high-end Reynolds 853 tubeset for which the bike is known, infusing its new frame with an up-to-the-minute geometry, all the latest industry standards, clearances for 27.5+ tires, and a host of bikepacking-friendly braze-ons.


2018 Niner SIR 9

2018 Niner SIR 9 3-Star 27.5+ Features: All-new Reynolds 853 Steel frame Revised geometry for modern all-mountain fun Compatible with 29ร—2.4 or 27.5ร—3.0 wheel/tire combos Hard mounts for frame bags on front triangle Rear rack mounts for up to 55 lbs of gear 148ร—12 Boost rear spacing 73mm PF30 BB Fox Factory 34 FIT4 fork with 120mm travel


Niner SIR 9 Reviews Mountain Bike Reviews

Jenson USA Bicycles - Authorized Dealer of Road Bikes, Mountain Bikes, Parts & More. Fast, Free Shipping over $50 - Shop Now!


Niner Cerakote SIR 9 Dream Build

Shop Top Bike Brands For Bikes, Parts, Gear & More. Great Online Selection! Up To 50% Off Sale Going On Now - Shop & Save Today!


Niner SIR 9 Review, Tested on the Colorado Trail

The Niner SIR 9 2-Star Bike is a steel-framed bike that is rugged, reliable, and comfortable with Reynolds 853 tubing. It is designed to work with 29" or 27.5+ tires and has 120mm of travel on the front. Trail Country geometry blurs the lines between modern trail bike geometry and traditional cross-country geometry.


SIR 9 Aggressive Steel Hardtail Niner Bikes

Cerakote SIR 9 We have said it before and we will say it again, we here at Niner love a custom paint job on our favorite bikes. For example, Niner has a long history of creating one-of-a-kind bike frames with an IMBA paint scheme and donating these bikes to support trail advocacy.


Niner Bikes Updates Classic Steel SIR 9 Hardtail Singletrack World Magazine

AIR 9 Durable, affordable, aluminum Build your AIR 9 To AIR 9 is human An aluminum hardtail with the DNA of a trail bike If a cross-country race bike met a rugged trail bike in the woods, their love child might look a lot like our AIR 9 aluminum hardtail.

Scroll to Top