To be able to keep compact and light-weight, most folding bikes have only a single chainring, limiting their hillclimbing capabilities. The Straightforward Trip is made to deal with that challenge, by incorporating two shiftable gears right into a customized single-ring crankset.
So to start with, dimension and weight issues apart, why not simply go along with two chainrings and a entrance derailleur? Nicely, some folding bikes do have these, however not all fashions have a design that may accommodate them. These further parts do additionally muddle issues up a bit.
Gearboxes and inner gear hubs are an alternative choice, however the former must be constructed into the body, and the latter must be constructed into the wheel. Moreover, each are comparatively heavy as in comparison with derailleurs. That is the place the Straightforward Trip is available in.
Contavelo
Presently the topic of a Kickstarter marketing campaign, the machine is manufactured by Korean firm Contavelo. It is designed to interchange the present crankset on third-party small-wheel folding bicycles.
Set up includes first eradicating the bike’s current pedals, chain (or belt), crankset and backside bracket, then assembling the Straightforward Trip unit and substituting it into the drivetrain when reinstalling. So sure, some mechanical aptitude is required.
Contavelo
From there, when you’re using, it is only a matter of back-pedaling at a variety of 45º to 90º everytime you wish to change gears. Doing so engages the clutch and ratchet mechanisms constructed into the crank.
Importantly, this may be achieved even when the bike is not shifting. The back-pedaling movement works for each shifting right down to 1st gear (1:0.75 ratio) and as much as 2nd (1:1). No handlebar controls are crucial.
The entire rig is claimed to tip the scales at 1.5 lb (0.7 kg), and is manufactured from aluminum alloy and heat-treated metal.
Assuming the Straightforward Trip reaches manufacturing, a pledge of US$259 will get you one. The deliberate retail value is $432.
Degree Up Your Small-Wheel Bicycle with Contavelo Straightforward Trip
Sources: Kickstarter, Contavelo
