ORIGINAL DOUBLE 2016
Revolt 1 (2016)
Crankset: Shimano R460 (34/48); Cassette: Shimano HG500 11x34, 10-speed; Derailleur: Tiagra; Gear inches: 34/48 + 11x34; GI = 27.5-120
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OPTION 1: Change the crank to a 30/46 crank (by Sugino, IRD, Velo Orange); requires one part
Sugino 30/46 + 11x34; GI = 24.2-115
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OPTION 2: Change the crank to a 30/46 and the cassette to an 11/36, which requires a Deore derailleur; requires 3 parts
22.8-114.9
Deore
http://bike.shimano.com/content/sac-bike/en/home/components11/mountain/deore1/rd-m615-sgs-s.html
http://bike.shimano.com/content/sac-bike/en/home/components11/mountain/deore1/cs-hg62-10.html
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ORIGINAL TRIPLE 2016
8speed; Claris shifters and derailleur; crank FSA Tempo, 30/39/50
Sugino XD2 Crank, Triple 46x36x24
Deore Derailleur
Cassette 11-36
New STI shifters
18.4 - 114.9
1:1 gear bicycle
1 to 1 bicycle gear ratio
http://adventure.howstuffworks.com/outdoor-activities/biking/mountain-bike1.htm
https://en.wikipedia.org/wiki/Bicycle_gearing
https://en.wikipedia.org/wiki/Gear_inches#Gain_ratio
http://lovelybike.blogspot.com/2013/07/go-anywhere-gearing-srampagnolo.html
http://bostonbybike.blogspot.com/2013/09/low-gearing-on-road-bike-part-13.html
WiFli derailleurs
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https://janheine.wordpress.com/2013/03/25/trouble-with-sti-triples/