Niner SIR 9 27.5+ 3-Star 2018
2018 Mountain
Estimate price |
3,950$
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 27.5" -
Travel Front 120mm -
Fork Fox Factory Float 34
-
Groupset GX, Truvativ Stylo -
Suspension Hardtail -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Chromoly
Suspension Fork
FOX 34 Factory Float FIT4, Kashima coating, EVOL air canister, 3-position compression adjustment
Rear Shock
N/A
Drivetrain
Rear Derailleur
SRAM Eagle GX, 12-speed
Front Derailleur
N/A
Shift Levers
SRAM Eagle GX, 12-speed
Cassette
SRAM XG-1275, 10-50 tooth
Crank
SRAM Stylo 7K Eagle
Bottom Bracket
Pressfit
Chain
SRAM GX Eagle, 12-speed
Chain Guide
N/A
Pedals
N/A
Wheels
Front Hub
Stan's NoTubes Neo/ZTR Arch Baron, 15mm x 110mm, 12mm x 148mm
Rear Hub
Stan's NoTubes Neo/ZTR Arch Baron, 15mm x 110mm, 12mm x 148mm
Rims
Stan's NoTubes Neo/ZTR Arch Baron
Tires
Maxxis Rekon+ 2.8" EXO, dual compound, tubeless ready
Brakes
Brakes
SRAM Guide R, 180mm front / 160mm rear rotors
Brake Levers
SRAM Guide R
Cockpit
Stem
Race Face Aeffect R, 50mm length
Handlebar
Race Face Aeffect R, 780mm width, 20mm rise
Grips
Niner Grrrips, nylon flanges
Headset
Niner headset, zero-stack SHIS, ZS44/28.6, ZS56/40
Seat
Saddle
Niner Custom TR, chromoly rails, printed Niner graphic
Seatpost
KS Lev Integra SI
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.46 mm | 1.43 mm | 1.41 mm |
| Bottom Bracket Height | 303 mm | 303 mm | 303 mm | 303 mm |
| Front Center | 696 mm | 714 mm | 740 mm | 767 mm |
| Rake | 54 mm | 53 mm | 54 mm | 54 mm |
| Trail | 85 mm | 86 mm | 85 mm | 85 mm |
| Stack | 607 mm | 616 mm | 630 mm | 648 mm |
| Reach | 406 mm | 421 mm | 441 mm | 461 mm |
| Top Tube Length | 591 mm | 599 mm | 623 mm | 648 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° |
| Seat Tube Length | 396 mm | 421 mm | 485 mm | 533 mm |
| Head Tube Angle | 68 ° | 68 ° | 68 ° | 68 ° |
| Head Tube Length | 100 mm | 110 mm | 125 mm | 145 mm |
| Chainstay Length | 423 mm | 423 mm | 423 mm | 423 mm |
| Wheelbase | 1114 mm | 1132 mm | 1158 mm | 1185 mm |
| Bottom Bracket Drop | 52 mm | 52 mm | 52 mm | 52 mm |
| Standover Height | 717 mm | 735 mm | 787 mm | 826 mm |
| Wheels | 27" | 27" | 27" | 27" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
About this model
SIR 9 27.5+ 3-Star is part of the Niner Sir model. Niner released 44 bikes variations of this model so far. You can get a glimpse at all models from 2018, by clicking on this link.
Model range prices
Niner SIR 9 27.5+ 1-Star 2018 is the most economical model, with a starting price of 2300$. Niner SIR 9 5-STAR 2018 on the other hand costs 5950$, and is the most expensive model.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Trail bikes average price
If you want an acceptable Trail bike you should know that the average price is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 3950$. Doing a quick comparison, we notice that SIR 9 27.5+ 3-Star price is 43.01% higher than the average cost of a Trail bike.
Overview of components
Fork
The fork installed on this bike is the Fox Factory Float 34 model. The travel on this model is 120mm. Bike forks are great for shock absorption and provide you with a smooth ride. In short, make sure you choose one with a decent fork when you purchase your dream bike.
Wheels size
As for the wheels, Niner SIR 9 27.5+ 3-Star 2018, has a 27.5″ aluminum model. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
Sizes
This bike is available in 4 sizes. They vary from 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, it won’t take much to find one that’s right for you.
Dropper post
Niner SIR 9 27.5+ 3-Star includes a dropper post. Needless to say, a dropper post will come in handy on climbs and descends. You’ll fall in love with it at first sight!