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Curve Cycling
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Belgie

2021 Curve Cycling Belgie Ultra

Category
Endurance Road
Design
Drop Bar, Rigid, non-suspension corrected
Frame
Titanium
Fork
Carbon/Composite
Features
Disc brake
Learn More
46
Compare
Collection
I've Ridden
49
Compare
Collection
I've Ridden
52
Compare
Collection
I've Ridden
54
Compare
Collection
I've Ridden
56
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Collection
I've Ridden
58
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Collection
I've Ridden
61
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Collection
I've Ridden
64
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Collection
I've Ridden
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive 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

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49
52
54
56
58
61
64
Stack
525mm
537mm
551mm
573mm
596mm
621mm
640mm
649mm
Reach
376mm
381mm
386mm
389mm
392mm
398mm
404mm
411mm
Stack to Reach Ratio
1.4:1
1.41:1
1.43:1
1.47:1
1.52:1
1.56:1
1.58:1
1.58:1
Seat Tube Length, C-T
460mm
490mm
520mm
540mm
560mm
580mm
610mm
640mm
Top Tube Length, Effective/Horizontal HT Top
528mm
537mm
545mm
555mm
564mm
588mm
600mm
610mm
Top Tube Slope
9.4deg
7.3deg
5.5deg
5.7deg
6deg
6.7deg
5.6deg
3.5deg
Head Tube Angle
70.5deg
71deg
71.5deg
72deg
72deg
72.5deg
72.5deg
72.5deg
Seat Tube Angle
74deg
74deg
74deg
74deg
74deg
73deg
73deg
73deg
Head Tube Length
125mm
135mm
148mm
170mm
195mm
220mm
240mm
250mm
Bottom Bracket Drop
75mm
75mm
75mm
75mm
73mm
73mm
73mm
73mm
Bottom Bracket Height
266mm
266mm
266mm
266mm
268mm
268mm
268mm
268mm
Chainstay Length
425mm
425mm
425mm
425mm
428mm
428mm
430mm
430mm
Chainstay Length Horizontal
418.3mm
418.3mm
418.3mm
418.3mm
421.7mm
421.7mm
423.8mm
423.8mm
Front-Center
585mm
591mm
595mm
601mm
611mm
620mm
632mm
642mm
Front-Center Horizontal
580.7mm
585.7mm
590.7mm
596.7mm
607.3mm
616.3mm
628.2mm
638.2mm
Wheelbase
999mm
1004mm
1009mm
1015mm
1029mm
1038mm
1052mm
1062mm
Fork Offset/Rake
43mm
43mm
43mm
43mm
43mm
43mm
43mm
43mm
Fork Length (Axle-To-Crown)
370mm
370mm
370mm
370mm
370mm
370mm
370mm
370mm
Trail
75.1mm
high
71.9mm
high
68.8mm
high
65.6mm
high
65.6mm
high
62.4mm
mid/​neutral
62.4mm
mid/​neutral
62.4mm
mid/​neutral
Mechanical Trail
70.8mm
68mm
65.2mm
62.4mm
62.4mm
59.5mm
59.5mm
59.5mm
Wheel Flop
23.6mm
22.1mm
20.7mm
19.3mm
19.3mm
17.9mm
17.9mm
17.9mm
Tire to Pedal Spindle
79mm
165 mm cranks
85mm
165 mm cranks
89mm
165 mm cranks
87.5mm
172.5 mm cranks
97.5mm
172.5 mm cranks
104mm
175 mm cranks
116mm
175 mm cranks
126mm
175 mm cranks
Pedal Spindle to Ground Clearance
101mm
165 mm cranks
101mm
165 mm cranks
101mm
165 mm cranks
93.5mm
172.5 mm cranks
95.5mm
172.5 mm cranks
93mm
175 mm cranks
93mm
175 mm cranks
93mm
175 mm cranks

Ultra Build

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52
54
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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
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
30mm
30mm
30mm
30mm
30mm
30mm
30mm
30mm
Tire Width Max
32mm
32mm
32mm
32mm
32mm
32mm
32mm
32mm
Tire Outer Diameter
682mm
682mm
682mm
682mm
682mm
682mm
682mm
682mm
Bike Length with Tires
1681mm
1686mm
1691mm
1697mm
1711mm
1720mm
1734mm
1744mm
Crank Length
165mm
165mm
165mm
172.5mm
172.5mm
175mm
175mm
175mm

Published Sizing Recommendations

Height
147 cm
to
157 cm
155 cm
to
165 cm
161 cm
to
170 cm
168 cm
to
177 cm
175 cm
to
184 cm
183 cm
to
192 cm
191 cm
to
201 cm
198 cm
to
208 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.curvecycling.com.au/collections/road-bikes/products/belgie-ultra
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