2017 Niner Bikes ROS 9 Plus Rigid Rigid Fork

Category
Rigid MTB
Design
Flat Bar, Rigid, suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category
Average stack and reachvs category

Geometry

SM
MD
LG
XL
Stack
598mm
607mm
621mm
621mm
Reach
404mm
418mm
434mm
453mm
Stack to Reach Ratio
1.48:1
1.45:1
1.43:1
1.37:1
Seat Tube Length, C-T
378mm
411mm
467mm
530mm
Top Tube Length, Effective/Horizontal HT Top
578mm
595mm
614mm
633mm
Top Tube Slope
24.8deg
21.8deg
17deg
10.6deg
Head Tube Angle
69deg
69deg
69deg
69deg
Seat Tube Angle
74deg
74deg
74deg
74deg
Head Tube Length
100mm
110mm
125mm
125mm
Bottom Bracket Drop
71mm
71mm
71mm
71mm
Bottom Bracket Height
316.2mm
316.2mm
316.2mm
316.2mm
Chainstay Length
445mm
445mm
445mm
445mm
Chainstay Length Horizontal
439.3mm
439.3mm
439.3mm
439.3mm
Front-Center
659mm
676mm
697mm
716mm
Front-Center Horizontal
654.7mm
672.7mm
692.7mm
711.7mm
Wheelbase
1094mm
1112mm
1132mm
1151mm
Fork Offset/Rake
45.2mm
45.7mm
44.4mm
44.4mm
Trail
100.2mm
very high
99.7mm
very high
101.1mm
very high
101.1mm
very high
Mechanical Trail
93.6mm
93.1mm
94.3mm
94.3mm
Wheel Flop
33.5mm
33.4mm
33.8mm
33.8mm
Standover Height
684mm
711mm
756mm
803mm
Tire to Pedal Spindle
101.8mm
170 mm cranks
118.8mm
170 mm cranks
139.8mm
170 mm cranks
158.8mm
170 mm cranks
Pedal Spindle to Ground Clearance
146.2mm
170 mm cranks
146.2mm
170 mm cranks
146.2mm
170 mm cranks
146.2mm
170 mm cranks

Rigid Fork Build

SM
MD
LG
XL
Wheel Size
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
Tire Width
3in
3in
3in
3in
Tire Outer Diameter
774.4mm
774.4mm
774.4mm
774.4mm
Bike Length with Tires
1868.4mm
1886.4mm
1906.4mm
1925.4mm

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Category Trend
Rigid MTB
Source:http://www.ninerbikes.com/ros9plus