My tandem, the 555 EXPRESS, has amongst others Shimano Ultegra, a 32/44/55 chain ring and 11/12/14/16/18/21/24/28/32 cluster - I find that between 60 and 65km/h on the downhill I no longer have “contact” with the gears and have no option but to use gravity/most aerodynamic position to go faster. This is cool but in Cape Town South Africa many of our hilly/mountain routes that we traverse/race are followed by a long decent or a gentle rolling hill.
I need the easy gears as we have many tough hills/mountains to conquer like “Hellshoogte” (English – Hellish High), “Ou Kaapse Weg” (English – Old Cape Way) and then “Vissershok” – the only to translate this one is besides that Vissershok has a gradient that has broken the spirit of many a cyclist but has a stunning fast down section thru farmlands and vineyards. I rode it on Sunday and only managed a top climbing speed of 8km/h.
My obvious problem is that I would like to get “contact” with the gears on the decent before I have to wait for 60/65km/h to appear on the speedometer which can be very frustrating when in an organized ride/race and there is gentle hill awaiting me where I need the speed to power over it.
mdk and the 555 EXPRESS