{"id":33,"date":"2019-05-23T18:42:55","date_gmt":"2019-05-23T17:42:55","guid":{"rendered":"https:\/\/www.gary.bilkus.com\/wordpress\/?p=33"},"modified":"2021-06-01T12:47:53","modified_gmt":"2021-06-01T11:47:53","slug":"bicycles","status":"publish","type":"post","link":"https:\/\/www.gary.bilkus.com\/wordpress\/bicycles\/","title":{"rendered":"Bicycles"},"content":{"rendered":"\n

Red Bike – Gary Road Bike in London<\/h3>\n\n\n\n

Pinnacle Lithium bought March 2016<\/p>\n\n\n\n

Gears 9 rear 11-32 and 3 front 42-32-22<\/p>\n\n\n\n

Wheels 700 x 38C<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

Copper bike – Patricia Road Bike in London<\/h3>\n\n\n\n

Copper bike is 2012 model Trek Fx 3 ladies hybrid bought second-hand in October 2020<\/p>\n\n\n\n

https:\/\/archive.trekbikes.com\/us\/en\/2012\/Trek\/7_3_fx_wsd_2012#\/us\/en\/2012\/Trek\/7_3_fx_wsd_2012\/details<\/a><\/p>\n\n\n\n

Gears 8 rear 11-32 and 3 front 48\/38\/28<\/p>\n\n\n\n

Wheels 700 x 32C<\/p>\n\n\n\n

Rim brakes<\/p>\n\n\n\n

Blue Bike<\/h3>\n\n\n\n

Blue Bike is 2005 model Trek 4300 https:\/\/www.bikepedia.com\/QuickBike\/BikeSpecs.aspx?year=2005&brand=Trek%20&model=4300<\/a> <\/p>\n\n\n\n

Gears 8 rear 11-32 and 3 front replaced to be 22-44 orig 24-42<\/p>\n\n\n\n

<\/p>\n\n\n\n

Grey Bike<\/h3>\n\n\n\n

Grey bike is 2007 model giant xtc-4.5<\/p>\n\n\n\n

https:\/\/www.thebikelist.co.uk\/giant\/xtc-4-5-2007<\/a><\/p>\n\n\n\n

Gears 9 rear 11-32 and 3 front 22-44<\/p>\n\n\n\n

Tyres….<\/p>\n\n\n\n

\n\n700 mm tyres have that as outer diameter
26 in tyres have 650 mm as outer diameter<\/p>\n\n\n\n

If the front gear has f cogs, the rear gear has r cogs and the wheel diameter is w, then the distance travelled per full rotation of the pedals is proportional to:
f * w \/ r 
Our bikes in Vernet are:
red: 
w = 70 fmax = 54 rmin = 12 giving 315
w = 70 fmin = 39 rmax = 31 giving 88<\/p>\n\n\n\n

blue Trek 4300 after changing front derailleur to use smaller sockets:
w = 65 fmax = 44 rmin=13 = 220
w = 65 fmin = 22 rmax = 30 =48<\/p>\n\n\n\n

black:
w = 70 fmax = 47 rmin = 13 =253
w = 70 fmin = 28 rmax = 33 = 59<\/p>\n\n\n\n

grey Giant xtc 45 :
w = 65 fmax = 44 rmin = 11 = 260
w = 65 fmin = 22 rmax = 32 = 44 
<\/p>\n","protected":false},"excerpt":{"rendered":"

Red Bike – Gary Road Bike in London Pinnacle Lithium bought March 2016 Gears 9 rear 11-32 and 3 front 42-32-22 Wheels 700 x 38C Copper bike – Patricia Road Bike in London Copper bike is 2012 model Trek Fx 3 ladies hybrid bought second-hand in October 2020 https:\/\/archive.trekbikes.com\/us\/en\/2012\/Trek\/7_3_fx_wsd_2012#\/us\/en\/2012\/Trek\/7_3_fx_wsd_2012\/details Gears 8 rear 11-32 and 3 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/posts\/33"}],"collection":[{"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/comments?post=33"}],"version-history":[{"count":6,"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/posts\/33\/revisions"}],"predecessor-version":[{"id":152,"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/posts\/33\/revisions\/152"}],"wp:attachment":[{"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/media?parent=33"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/categories?post=33"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gary.bilkus.com\/wordpress\/wp-json\/wp\/v2\/tags?post=33"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}