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2020 Large SKU: BMT24338

Niner Sir 9 Mountain Bike - 2020, Large

Regular price

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About Niner

Niner Bicycles is committed to dirt, so MTB and gravel are their only loves. Niner was early in the 29er game (get it?), and they're still following that groundbreaking spirit today.

Highlights:
- This steel hardtail is ready to spice up your favorite trails.

Master Mechanic's Notes
- Moderate scratches on the inside of the chainstays & chainstay arch.
- Small paint chip on the drive side chainstay.
- Small scuffs on the non drive side head tube.
- Light scratches on the rims & the fork lower legs.
- Light scratches on the non-drive side chainstay.

About Niner

Niner Bicycles is committed to dirt, so MTB and gravel are their only loves. Niner was early in the 29er game (get it?), and they're still following that groundbreaking spirit today.
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TPC Guarantee

This bike passed a 141-point inspection and received a full pro-tune by our Master Mechanics in our Certified Pre-Owned process. CPO bikes are pristine and ready to ride!

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30-Day Hassle-Free Returns

Shop with confidence. Every bike is covered by our 30-day satisfaction guarantee. If this bike isn’t perfect for you, get in touch and we’ll help you find the right bike.

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RideFast Shipping

Assemble your bike in 15 minutes or less! Our bikes ship in our RideFast box for speed and safety. All tools you need to assemble are included.

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Specifications

Year 2020
Brand Niner
Model Sir 9
Size Large
Frame Material Steel
Drivetrain SRAM, 1x11 spd
Weight 29 lbs 1 oz
Fork RockShox RL Gold
Fork Travel 120mm
Rear Shock Travel N/A
Brakes SRAM Level, Disc - Hydraulic
Shifters SRAM NX , Mechanical
Rear Derailleur SRAM NX
Bottom Bracket Shell Press fit
Crankset SRAM NX Alloy, 32t, 175mm
Cassette SRAM PG-1130, 11-42t
Chain SRAM
Handlebar Race Face Aeffect Alloy, 770mm
Headset Niner
Stem Race Face Aeffect Alloy, 35.0mm x 50mm, 6°
Seatpost Niner Alloy, 30.9mm
Saddle Niner Custom
Front Axle Spacing 15x110mm (Thru-Axle)
Rear Axle Spacing 12x148mm Boost
Wheelset Niner Aluminum Tubeless Compatible, Niner
Front Tire Maxxis Ardent, 29" x 2.4"
Rear Tire Vittoria Mezcal Graphene 2.0 XC-Trail, 29" x 2.25"
Tire Type Tubeless
Tubeless Compatibility Bike ships tubeless
Charger Included N/A

Geometry

Recommended Rider Height 5'10" - 6'1"
a. Effective Top Tube 627 mm
b. Seat Tube 485 mm
c. Seat Tube Angle 74°
d. Head Tube Angle 68°
e. Head Tube 125 mm
f. Stack 634 mm
g. Reach 445 mm
h. Standover Height 791 mm
i. Saddle Height Range N/A
VIEW SIZING GUIDE
QUALITY YOU CAN TRUST

“I love this company! My beautiful bike arrived promptly, was packed brilliantly, and tuned perfectly. It was exactly as described.”

— Kari K.

OVER 1,500 FIVE-STAR REVIEWS

“In the past month, I purchased a road bike and MTB from TPC. Very happy with the price and condition of both bikes! I was riding the bikes 10 minutes after I received them.”

— David H.

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