2 Speed to 3 speed external cogs upgrade in detail (MiniMODs X3 Unibody Cog Set or X2+1)
http://bikegang.store/LHL4C X3 Unibody Cog set (11-14-17t) on Joseph Kuosac (was 2 speed wheelset) In addition to the narrower 11 speed chain upgrade. Standard three speed Brompton shifter (latest type) inline cable adjuster is needed and tensioner washer to stop plastic derailleur and three speed cassette interference. Also 0.5mm free hub spacer to get correct fit on JK wheel hub. vidoe Credit : Alex Warwick Cycles This setup will work for stock Brompton 2 speed or 6 speed
How about Handlebar? Why is ergonomic important?
Some aftermarket choices H&H Ergonomic Angled 550mm long Seamless Titanium Handle bar : S type, lower Rise, Riser M sizes (Black or Silver) From BIKEfit Expert Joseph Kuosac Aluminum . Carbon fiber / S type, Mid-riser and Full Rise M / 600mm. If we line them up , it will be like this ... H&H Titanium or Joseph Kuosac Aluminum/Carbon handlebars. Rise Distance: HH S 35mm / JK S 40mm / HH low rise 60mm / HH riser M 95mm / JK mid-riser 105mm / JK M 165mm JK 600mm @ 12° (http://bi
