2021 Curve Cycling Belgie Ultra
- Category
- Endurance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Titanium
- Fork
- Carbon/Composite
- Features
- Disc brake
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
46 | 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
46 | 49 | 52 | 54 | 56 | 58 | 61 | 64 | |
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 ScaleCategory Trend
Endurance RoadSource:https://www.curvecycling.com.au/collections/road-bikes/products/belgie-ultra