2021 Boardman Bikes SLR 8.6

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Carbon/Composite
Features
Rim brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

SM
MD
LG
XL
Stack
547mm
568mm
589mm
604mm
Reach
378mm
384mm
390mm
400mm
Stack to Reach Ratio
1.45:1
1.48:1
1.51:1
1.51:1
Seat Tube Length, Unknown
515mm
530mm
555mm
585mm
Top Tube Length, Effective/Horizontal Unknown
540mm
552mm
570mm
585mm
Top Tube Slope
5.8deg
6.4deg
6deg
4.5deg
Head Tube Angle
72deg
72.5deg
73deg
73deg
Seat Tube Angle
73.5deg
73.5deg
73deg
73deg
Head Tube Length
140mm
160mm
180mm
195mm
Bottom Bracket Drop
68mm
68mm
68mm
68mm
Bottom Bracket Height
268mm
268mm
268mm
268mm
Chainstay Length
415mm
415mm
415mm
415mm
Chainstay Length Horizontal
409.4mm
409.4mm
409.4mm
409.4mm
Front-Center
588.1mm
595.9mm
600.2mm
614.7mm
Front-Center Horizontal
584.1mm
592mm
596.3mm
610.9mm
Wheelbase
993.5mm
1001.4mm
1005.7mm
1020.3mm
Fork Offset/Rake
48mm
48mm
45mm
45mm
Trail
58.7mm
mid/​neutral
55.6mm
mid/​neutral
55.7mm
mid/​neutral
55.7mm
mid/​neutral
Mechanical Trail
55.8mm
53mm
53.2mm
53.2mm
Wheel Flop
17.3mm
16mm
15.6mm
15.6mm
Tire to Pedal Spindle
82.1mm
170 mm cranks
89.9mm
170 mm cranks
91.7mm
172.5 mm cranks
103.7mm
175 mm cranks
Pedal Spindle to Ground Clearance
98mm
170 mm cranks
98mm
170 mm cranks
95.5mm
172.5 mm cranks
93mm
175 mm cranks

8.6 Build

SM
MD
LG
XL
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
Tire Width Max
28mm
28mm
28mm
28mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
Bike Length with Tires
1665.5mm
1673.4mm
1677.7mm
1692.3mm
Crank Length
170mm
170mm
172.5mm
175mm
Handlebar Width
400mm
400mm
420mm
440mm
Stem Length
90mm
100mm
110mm
120mm

Published Sizing Recommendations

Height
170 cm
to
179 cm
177 cm
to
183 cm
181 cm
to
189 cm
187 cm
to
195 cm

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
Endurance Road
Source:https://www.boardmanbikes.com/gb_en/products/2337-slr-8.6-2021.html#size