What are Downtube Shifters?
Dura-Ace 7900 Index Downtube Shifters (2008)
Dura-Ace First Gen. Friction Downtime Shifters (1973)
Downtube shifters are shift levers mounted on the downtube of the bicycle, in order to shift a gear, you need to take one hand off the handlebar and push the levers from the downtube. It might take some time to learn at the beginning, but once you get used to it, you’ll benefit from having shorter cables and housing, least resistance to the moving handlebars and minimal adjustments.
The installation is simple, all you need is to make sure that the cables are tight and the limit screws are all set so that the chain doesn’t fall off the drivetrain.
Indexed shifting has a click in the shifter for each gear selected, each pull or push moves a fixed amount of cable to the derailleur. With that accurate positioning, the shifting can be precise and consistent once you have it adjusted properly.
Friction shifting doesn’t have any notches or clicks, you move your derailleur exactly as much as you push the shifter. They are compatible to all speeds, no matter from 5 to 12 speeds or even 13 speeds, you simply need to learn how far to move the lever for each shift, once you have control of it, it becomes faster, quieter and you just hit to the gear you want with less effort.
So which one do you think is better? Index or Friction shifters? What do you think about downtube shifting? Are they any good or shifters should better be located on the handlebars?
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Danyo Sports Channel Episode 61
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23 июн 2020
