2019 Mason Cycles Definition 105 Hydro

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

Geometry

50CM
52CM
54CM
56CM
58CM
60CM
62CM
Stack
543.3mm
552.8mm
565.5mm
579.7mm
591.1mm
599.1mm
620.1mm
Reach
380.6mm
382.5mm
383mm
388.3mm
394.7mm
396.8mm
405.5mm
Stack to Reach Ratio
1.43:1
1.45:1
1.48:1
1.49:1
1.5:1
1.51:1
1.53:1
Seat Tube Length, C-T
500mm
520mm
540mm
560mm
580mm
600mm
620mm
Seat Tube Length, C-C
452.7mm
473mm
493.5mm
513.6mm
534.1mm
554mm
574.3mm
Top Tube Length, Effective/Horizontal Center
532.8mm
537.4mm
551.5mm
561.1mm
581.3mm
586mm
601mm
Top Tube Length, Actual C-C
516.8mm
522.7mm
536.3mm
546.7mm
566.9mm
574.3mm
588.8mm
Top Tube Slope
9deg
7.7deg
6.9deg
6.3deg
5.4deg
4.2deg
4.3deg
Head Tube Angle
71.5deg
71.5deg
71.5deg
71.5deg
72deg
72deg
72.5deg
Seat Tube Angle
74.5deg
74.5deg
73.5deg
73.5deg
72.5deg
72.5deg
72.5deg
Head Tube Length
130mm
140mm
155mm
170mm
180mm
190mm
210mm
Bottom Bracket Drop
73mm
73mm
71.5mm
71.5mm
71.5mm
70mm
70mm
Bottom Bracket Height
266mm
266mm
267.5mm
267.5mm
267.5mm
269mm
269mm
Chainstay Length
420mm
420mm
420mm
420mm
420mm
420mm
420mm
Chainstay Length Horizontal
413.6mm
413.6mm
413.9mm
413.9mm
413.9mm
414.1mm
414.1mm
Front-Center
590mm
595mm
600mm
610mm
615mm
620mm
630mm
Front-Center Horizontal
585.5mm
590.5mm
595.7mm
605.8mm
610.8mm
616.1mm
626.1mm
Wheelbase
999.1mm
1004.1mm
1009.6mm
1019.7mm
1024.7mm
1030.2mm
1040.2mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
45mm
45mm
Fork Length (On-Axis)
380mm
380mm
380mm
380mm
380mm
380mm
380mm
Trail
66mm
high
66mm
high
66mm
high
66mm
high
62.8mm
mid/​neutral
62.8mm
mid/​neutral
59.7mm
mid/​neutral
Mechanical Trail
62.6mm
62.6mm
62.6mm
62.6mm
59.8mm
59.8mm
56.9mm
Wheel Flop
19.9mm
19.9mm
19.9mm
19.9mm
18.5mm
18.5mm
17.1mm
Standover Height
756.5mm
770.8mm
787.3mm
804mm
818.1mm
833.1mm
853.2mm
Tire to Pedal Spindle
81mm
170 mm cranks
86mm
170 mm cranks
88.5mm
172.5 mm cranks
98.5mm
172.5 mm cranks
101mm
175 mm cranks
106mm
175 mm cranks
116mm
175 mm cranks
Pedal Spindle to Ground Clearance
96mm
170 mm cranks
96mm
170 mm cranks
95mm
172.5 mm cranks
95mm
172.5 mm cranks
92.5mm
175 mm cranks
94mm
175 mm cranks
94mm
175 mm cranks

105 Hydro Build

50CM
52CM
54CM
56CM
58CM
60CM
62CM
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
700C/29"
622 mm BSD
Tire Width
28mm
28mm
28mm
28mm
28mm
28mm
28mm
Tire Width Max
33mm
33mm
33mm
33mm
33mm
33mm
33mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
678mm
678mm
678mm
Bike Length with Tires
1677.1mm
1682.1mm
1687.6mm
1697.7mm
1702.7mm
1708.2mm
1718.2mm
Crank Length
170mm
170mm
172.5mm
172.5mm
175mm
175mm
175mm
Handlebar Width
420mm
420mm
440mm
440mm
460mm
460mm
460mm
Stem Length
90mm
90mm
100mm
110mm
110mm
120mm
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/definition-105-hydro