{"id":31229,"date":"2026-04-19T02:11:01","date_gmt":"2026-04-19T06:11:01","guid":{"rendered":"https:\/\/www.opusbike.com\/en\/bikes\/fortitude-tiagra-op-fortiacb-en\/"},"modified":"2026-04-19T02:11:01","modified_gmt":"2026-04-19T06:11:01","slug":"fortitude-tiagra-op-fortiacb-en","status":"publish","type":"bike","link":"https:\/\/www.opusbike.com\/en\/bikes\/fortitude-en\/fortitude-tiagra-op-fortiacb-en\/","title":{"rendered":"FORTITUDE TIAGRA"},"content":{"rendered":"","protected":false},"featured_media":0,"menu_order":11470,"template":"","bike-archive-year":[2528,2559,2590,2591],"bike-category":[2564,2347],"bike-color":[2088],"bike-size":[1981,1857,1861,1934,1851,1881],"bike-technology":[2409,2410,2581,2578,2360,2359,2358,2370],"bike-brand":[1848],"bike-wheel-size":[2532],"bike-brake":[1849],"class_list":["post-31229","bike","type-bike","status-publish","hentry","bike-archive-year-2024-en","bike-archive-year-2025-en","bike-archive-year-2026-fr","bike-archive-year-2026-en","bike-category-fortitude-en","bike-category-road-and-gravel","bike-color-crystal-blue","bike-size-l-en","bike-size-m-en","bike-size-s-en","bike-size-xl-en","bike-size-xs-en","bike-size-xxs-en","bike-technology-2x10-braquets-fr","bike-technology-2x10-gearing-en","bike-technology-aluminum-frame-en","bike-technology-cadre-en-aluminium-fr","bike-technology-carbon-fork-en","bike-technology-optimized-gearing-en","bike-technology-progressive-geometry-en","bike-technology-xxs-xl-en","bike-brand-opus-en","bike-wheel-size-700-en","bike-brake-disc-en"],"acf":{"bike_status":"Current","bike_subtitle":"Aluminum \/ Tiagra 10-spd","tagline":"","model_name":"FORTITUDE TIAGRA","msrp":1999.99,"bike_upc":"624316159148","bullets":{"bullets_1":"Complete Shimano Tiagra 10-speed group","bullets_2":"Dual piston mechanical disc brakes","bullets_3":"Full carbon fork","bullets_4":"32mm tires with clearance for up to 35mm","bullets_5":"Ergonomic handlebar"},"color_variations":[{"color":2088,"image":[31231,31233,31235],"size_variation":[{"size":"XL","description":"FORTITUDE TIAGRA CRYSTAL BLUE EXTRA LARGE"},{"size":"L","description":"FORTITUDE TIAGRA CRYSTAL BLUE LARGE"},{"size":"M","description":"FORTITUDE TIAGRA CRYSTAL BLUE MEDIUM"},{"size":"S","description":"FORTITUDE TIAGRA CRYSTAL BLUE SMALL"},{"size":"XS","description":"FORTITUDE TIAGRA CRYSTAL BLUE EXTRA SMALL"},{"size":"XXS","description":"FORTITUDE TIAGRA CRYSTAL BLUE EXTRA EXTRA"}]}],"bike_caracteristics":{"fork":"Full Carbon Tapered 1-1\/2 to 1-1\/8 in","frame":"Aluminum","sizes":[1851,1857,1861,1881,1934,1981],"weight":"21 lb \/ 9.5 kg","bike_colors":[2088],"shifters":"Shimano Tiagra 4700 2 x 10","front_derailleur":"Shimano Tiagra 4700","rear_derailleur":"Shimano Tiagra 4700","brakes":"Tektro MDC-550 Flat Mount Twin Piston Disc","brakelevers":"Shimano Tiagra 4700","crank":"Shimano Tiagra 4700","chainrings":"50-34","bottom_bracket":"Shimano sealed cartridge","cassette_cogs":"Shimano 11-34t","chain":"Shimano HG54","headset":"FSA Orbit Integrated Sealed","handlebar":"X-Race Aero 8\u00b0 flare","stem":"Promax","grips_tape":"Velo VexGel","saddle":"Opus Endurance","seatpost":"Promax alloy 27.2 x 300","wheels_rims":"Weinmann U28TL","hubs":"Alex Bear Pawls through axle 12 mm fr\/rr","tires":"Kenda Fortitude Elite 700 x 32","pedals":"N\/A","other_1":"Rear rack and fender mounts","other_2":"","other_3":"","e_bike_motor":""},"geo_table":"
Size<\/b><\/td>XXS<\/b><\/td>XS<\/b><\/td>S<\/b><\/td>M<\/b><\/td>L<\/b><\/td>XL<\/b><\/td><\/tr>
Rider's height (\u00b1 5CM)<\/td>5'0\"<\/td>5'3\"<\/td>5'6\"<\/td>5'9\"<\/td>6'0\"<\/td>6'3\"<\/td><\/tr>
Rider's height (\u00b1 2\")<\/td>152<\/td>160<\/td>168<\/td>175<\/td>183<\/td>190<\/td><\/tr>
S -<\/b> Seat tube<\/td>440<\/td>480<\/td>520<\/td>540<\/td>560<\/td>580<\/td><\/tr>
TT -<\/b> Top tube<\/td>507<\/td>525<\/td>544<\/td>564<\/td>585<\/td>607<\/td><\/tr>
HT -<\/b> Head tube<\/td>100<\/td>120<\/td>138<\/td>157<\/td>178<\/td>199<\/td><\/tr>
HA -<\/b> Head angle<\/td>70.5<\/td>71.25<\/td>72<\/td>72.5<\/td>72.5<\/td>73<\/td><\/tr>
SA -<\/b> Seat angle<\/td>74.5<\/td>74<\/td>73.5<\/td>73<\/td>72.5<\/td>72<\/td><\/tr>
CS -<\/b> Chain stay<\/td>416<\/td>416<\/td>419<\/td>419<\/td>422<\/td>422<\/td><\/tr>
D -<\/b> BB drop<\/td>79<\/td>76<\/td>76<\/td>76<\/td>76<\/td>74<\/td><\/tr>
ST -<\/b> Stack<\/td>522<\/td>540<\/td>560<\/td>580<\/td>600<\/td>620<\/td><\/tr>
RE -<\/b> Reach<\/td>362<\/td>370<\/td>378<\/td>387<\/td>396<\/td>405<\/td><\/tr>
SO -<\/b> Stand over<\/td>709<\/td>736<\/td>772<\/td>790<\/td>810<\/td>830<\/td><\/tr>
Handlebar width (mm)<\/td>380<\/td>400<\/td>420<\/td>420<\/td>440<\/td>460<\/td><\/tr>
Stem length (mm)<\/td>70<\/td>80<\/td>90<\/td>100<\/td>110<\/td>120<\/td><\/tr>
Crank length (mm)<\/td>165<\/td>170<\/td>172.5<\/td>172.5<\/td>172.5<\/td>175<\/td><\/tr><\/tbody><\/table>","geo_table_image":"https:\/\/pim.ogc.ca\/product-images\/opus\/geometry-charts\/legends\/opus-geo-legend-road-and-gravel.jpg","bike_suggested_products":null},"_links":{"self":[{"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike\/31229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike"}],"about":[{"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/types\/bike"}],"wp:attachment":[{"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/media?parent=31229"}],"wp:term":[{"taxonomy":"bike-archive-year","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-archive-year?post=31229"},{"taxonomy":"bike-category","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-category?post=31229"},{"taxonomy":"bike-color","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-color?post=31229"},{"taxonomy":"bike-size","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-size?post=31229"},{"taxonomy":"bike-technology","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-technology?post=31229"},{"taxonomy":"bike-brand","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-brand?post=31229"},{"taxonomy":"bike-wheel-size","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-wheel-size?post=31229"},{"taxonomy":"bike-brake","embeddable":true,"href":"https:\/\/www.opusbike.com\/en\/wp-json\/wp\/v2\/bike-brake?post=31229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}