{"id":10775,"date":"2025-06-01T01:42:36","date_gmt":"2025-05-31T23:42:36","guid":{"rendered":"https:\/\/catalunyapaisdarxius.cat\/catalunyapaisdarxius\/recurs-digital\/recurs\/document\/cota-247-i-248-model-21m-cota-247-i-248-grup-de-peces-64-canvi-de-velocitats-peca-num-169\/"},"modified":"2025-10-01T22:36:16","modified_gmt":"2025-10-01T20:36:16","slug":"cota-247-i-248-model-21m-cota-247-i-248-grup-de-peces-64-canvi-de-velocitats-peca-num-169","status":"publish","type":"document","link":"https:\/\/catalunyapaisdarxius.cat\/en\/catalunyapaisdarxius\/digital-resource\/resource\/document\/cota-247-i-248-model-21m-cota-247-i-248-grup-de-peces-64-canvi-de-velocitats-peca-num-169\/","title":{"rendered":"Dimensions 247 and 248. Model: 21M – Dimensions 247 and 248. Group of parts: 64 – Change of speeds. Part No.: 169."},"content":{"rendered":"

This technical document is part of the set of plans and diagrams of the Montesa Cota 247 and 248 motorcycles, emblematic models of the Catalan motor industry. The drawing shows the detail of the speed change system, and is an example of the capacity for innovation and technical precision of the Montesa company, one of the most internationally recognized brands in the trials world. This document is part of the theme of economic engines and industrial culture, and reflects how Catalonia became a hub of technological and sports production with European projection. It is also a valuable source for the history of industrial design and engineering applied to mobility.<\/p>\n","protected":false},"featured_media":14576,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"eix":[26],"class_list":["post-10775","document","type-document","status-publish","has-post-thumbnail","hentry","eix-els-motors-economics"],"acf":[],"yoast_head":"\nDimensions 247 and 248. 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