2019 Mason Cycles Aspect Dura Ace DI2 Hydro

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Titanium
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

50CM
52CM
54CM
56CM
58CM
60CM
Stack
552.8mm
567mm
579.7mm
594mm
605.4mm
613.4mm
Reach
377.5mm
377.8mm
378.2mm
385.5mm
390mm
392.2mm
Stack to Reach Ratio
1.46:1
1.5:1
1.53:1
1.54:1
1.55:1
1.56:1
Seat Tube Length, C-T
500mm
520mm
540mm
560mm
580mm
600mm
Seat Tube Length, C-C
452.6mm
472.8mm
493.2mm
513.4mm
533.8mm
554.1mm
Top Tube Length, Effective/Horizontal Center
532.6mm
536.8mm
551.2mm
560.7mm
581.2mm
585.9mm
Top Tube Length, Actual C-C
516mm
520.8mm
534.2mm
544.5mm
564.7mm
571.8mm
Top Tube Slope
9.6deg
8.8deg
8.1deg
7.4deg
6.5deg
5.3deg
Head Tube Angle
71.5deg
71.5deg
71.5deg
71.5deg
72deg
72deg
Seat Tube Angle
74.5deg
74.5deg
73.5deg
73.5deg
72.5deg
72.5deg
Head Tube Length
140mm
155mm
170mm
185mm
195mm
205mm
Bottom Bracket Drop
73mm
73mm
71.5mm
71.5mm
71.5mm
70mm
Bottom Bracket Height
268mm
268mm
269.5mm
269.5mm
269.5mm
271mm
Chainstay Length
425mm
425mm
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
418.7mm
418.7mm
418.9mm
418.9mm
418.9mm
419.2mm
Front-Center
590mm
595mm
600mm
610mm
615mm
620mm
Front-Center Horizontal
585.5mm
590.5mm
595.8mm
605.8mm
610.8mm
616mm
Wheelbase
1004.2mm
1009.2mm
1014.7mm
1024.7mm
1029.7mm
1035.2mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
45mm
Fork Length (On-Axis)
380mm
380mm
380mm
380mm
380mm
380mm
Trail
66.6mm
high
66.6mm
high
66.6mm
high
66.6mm
high
63.5mm
mid/​neutral
63.5mm
mid/​neutral
Mechanical Trail
63.2mm
63.2mm
63.2mm
63.2mm
60.4mm
60.4mm
Wheel Flop
20.1mm
20.1mm
20.1mm
20.1mm
18.7mm
18.7mm
Standover Height
758.9mm
775.7mm
792.1mm
808.8mm
822.9mm
837.9mm
Tire to Pedal Spindle
79mm
170 mm cranks
84mm
170 mm cranks
86.5mm
172.5 mm cranks
96.5mm
172.5 mm cranks
99mm
175 mm cranks
104mm
175 mm cranks
Pedal Spindle to Ground Clearance
98mm
170 mm cranks
98mm
170 mm cranks
97mm
172.5 mm cranks
97mm
172.5 mm cranks
94.5mm
175 mm cranks
96mm
175 mm cranks

Dura Ace DI2 Hydro Build

50CM
52CM
54CM
56CM
58CM
60CM
Wheel Size
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
Tire Width
30mm
30mm
30mm
30mm
30mm
30mm
Tire Outer Diameter
682mm
682mm
682mm
682mm
682mm
682mm
Bike Length with Tires
1686.2mm
1691.2mm
1696.7mm
1706.7mm
1711.7mm
1717.2mm
Crank Length
170mm
170mm
172.5mm
172.5mm
175mm
175mm
Handlebar Width
420mm
420mm
440mm
440mm
460mm
460mm
Stem Length
90mm
90mm
100mm
110mm
110mm
120mm

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://masoncycles.cc/products/aspect-dura-ace-di2-hydro