2019 Miracle Bike GR028/GR029 Base

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

Geometry

52cm
54cm
56cm
58cm
Stack
540mm
554mm
570mm
582mm
Reach
355mm
366mm
381mm
392mm
Stack to Reach Ratio
1.52:1
1.51:1
1.5:1
1.48:1
Seat Tube Length, C-T
500mm
520mm
540mm
560mm
Top Tube Length, Effective/Horizontal Center
515mm
535mm
555.5mm
575mm
Top Tube Slope
7deg
6.2deg
5.7deg
4.8deg
Head Tube Angle
70.5deg
71deg
71.5deg
72deg
Seat Tube Angle
73.5deg
73.5deg
73deg
73deg
Head Tube Length
120mm
130mm
145mm
160mm
Bottom Bracket Drop
65mm
65mm
65mm
65mm
Bottom Bracket Height
271mm
271mm
271mm
271mm
Chainstay Length
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
420mm
420mm
420mm
420mm
Front-Center
580mm
586mm
601mm
620mm
Front-Center Horizontal
576mm
582mm
597mm
619mm
Wheelbase
996mm
1002mm
1017mm
1039mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
Fork Length, Unknown
396mm
396mm
396mm
396mm
Trail
71.3mm
high
68.1mm
high
65mm
mid/​neutral
61.9mm
mid/​neutral
Mechanical Trail
67.2mm
64.4mm
61.6mm
58.8mm
Wheel Flop
22.4mm
21mm
19.6mm
18.2mm
Tire to Pedal Spindle
74mm
170 mm cranks
80mm
170 mm cranks
95mm
170 mm cranks
114mm
170 mm cranks
Pedal Spindle to Ground Clearance
101mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks

Base Build

52cm
54cm
56cm
58cm
Wheel Size
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
700C/29"
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
Bike Length with Tires
1668mm
1674mm
1689mm
1711mm

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
Cyclocross
Source:http://miraclebikes.com/Product/detail/id/37.html