Niner Bikes Updates Classic Steel SIR 9 Hardtail Singletrack Magazine


2019 Niner SIR 9 4Star

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.


2013 Niner SIR 9 Singlespeed Bike Reviews, Comparisons, Specs Mountain Bikes Vital MTB

The new Niner SIR 9 was designed around Niner's [r]evolution Trail Geometry and has a 68ยฐ head tube angle, 74ยฐ seat tube angle, a 427mm chainstay, and a 55mm BB drop. The Niner SIR 9 is available as a frame only for $1200 or one of nine build kits โ€” five 29er options ranging from 2-Star SLX at $3,000 to 5-Star Eagle X01 Carbon for a cool $6k.


Niner Cerakote SIR 9 Dream Build

Silky steel big-wheeler


SIR 9 Aggressive Steel Hardtail Niner Bikes

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 Review, Tested on the Colorado Trail

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Niner Bikes Updates Classic Steel SIR 9 Hardtail Singletrack Magazine

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 2 Star Bike 2020 Jenson USA

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 SIR 9 Review, Tested on the Colorado Trail

SIR 9 Frame Gloss Black/Bronze $1,499.00 $1,199.00 The SIR 9 is built to last and not let you down. When you're spinning up the steeps, bombing down the backcountry and grinding out the final miles as the sun sinks into the horizon, you need a bike you can trust. A comfortable, capable, hand-built made from proven, air-hardened, heat treated steel.


2021 Niner SIR 9

At a glance. The 2022 Niner SIR 9 Frameset is an Cross Country Steel mountain bike. It sports 29" wheels, is priced at $1,200 USD and comes in a range of sizes, including SM, MD, LG, XL. The bike is part of Niner 's SIR range of mountain bikes.


Niner SIR 9 Reviews Mountain Bike Reviews

sir_9 Are you a carbon connoisseur, adventure addict, king of the mountain, weekend bikepacker, grocery-getter, commuter extraordinaire, cross country speedster, gear-hoarder, steel-for-life supporter?


Niner SIR 9 Review, Tested on the Colorado Trail

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.


2018 Niner SIR 9

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 Review, Tested on the Colorado Trail

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Niner SIR 9 Review, Tested on the Colorado Trail

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 27.5+ 2Star Mountain Bike 2019 Bike

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.