In alternativa puoi metterli sul montante con gli appositi adattatori tipo questi:
http://www.vividracing.com/catalog/auto ... 16025.html
http://www.vividracing.com/catalog/auto ... 16026.html
http://www.vividracing.com/catalog/lote ... 49536.html
http://www.vividracing.com/catalog/auto ... 16025.html
http://www.vividracing.com/catalog/auto ... 16026.html
http://www.vividracing.com/catalog/lote ... 49536.html