Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Wheels 29" -
Travel Front 120mm -
Fork RockShox Judy Gold RL
-
Groupset NX -
Suspension Hardtail -
Drivetrain 1 × 11 -
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
RockShox Judy Gold RL Solo Air
Rear Shock
N/A
Drivetrain
Rear Derailleur
SRAM NX1, 11-speed
Front Derailleur
N/A
Shift Levers
SRAM NX1, 11-speed
Cassette
SRAM PG-1130, 11-42 tooth
Crank
SRAM NX1
Bottom Bracket
Pressfit
Chain
SRAM PC-1110, 11-speed
Chain Guide
N/A
Pedals
N/A
Wheels
Front Hub
Niner Alloy, 15mm x 110mm, 12mm x 148mm
Rear Hub
Niner Alloy, 15mm x 110mm, 12mm x 148mm
Rims
Niner Alloy 29"
Tires
Front: Maxxis Ardent 2.4", dual compound, tubeless ready, Rear: Maxxis Ardent 2.25", dual compound, tubeless ready
Brakes
Brakes
SRAM Level, 180mm front / 160mm rear rotors
Brake Levers
SRAM Level
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
Niner Alloy, 370mm length
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 | 322 mm | 322 mm | 322 mm | 322 mm |
| Front Center | 696 mm | 714 mm | 740 mm | 767 mm |
| Rake | 54 mm | 53 mm | 54 mm | 54 mm |
| Trail | 93 mm | 94 mm | 93 mm | 93 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 | 29" | 29" | 29" | 29" |
| 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 29 1-Star completes 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
The most economical model, the Niner SIR 9 29 1-Star 2018 has a starting price of 2300$. Niner SIR 9 5-STAR 2018 on the other hand is the most expensive at 5950$.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Trail bikes average price
According to our calculations, the average cost of a Trail bike that is reliable is 2762$. However, this doesn’t mean that if you spend less money on a Trail bike, you couldn’t get a decent one. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 2300$. In conclusion, this bike price is 20.09% lower than the price of the average Trail bike.
SIR 9 29 1-Star components
Fork
The SIR 9 29 1-Star comes factory-installed with the RockShox Judy Gold RL fork. This has a travel range of 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
When leaving the production line, the SIR 9 29 1-Star model has 29″ aluminum wheels. With 29″ wheels, bumps will feel lighter and you’ll gain more speed on descends, compared to smaller wheel-sized bikes. However, the 29″ wheels will add a little more weight to the bike itself.
Brakes
When you want to stop the bike in time, the brakes are vital. The SIR 9 29 1-Star has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.
Sizes
There are 4 sizes available for this model. Rider height can be anywhere between 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, you won’t have a problem finding one that suits you.