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Recumbent gearing calculator


Wheel diameterWheel size:
Front chainring(s): Crank length:
Front transmissionNone:
Schlumpf DriveMountain-Drive:     Speed-Drive:     HighSpeed-Drive:
Pinion gearboxP1.12:     P1.18:
Efneo GTRO (3-speed):
Rear cassetteCassette:
-
Raw gear: -
~=170mm: -

SRAM 3x7 / Dual-Drive: -
~=170mm: -
14-sp Rohloff Speedhub 500/14Cog: -
~=170mm: -
7-8sp InternalCog: SRAM S7: -
Shimano Nexus-7: -
Shimano Nexus Inter-8: -
Shimano Alfine-11: -
Nuvinci N360: -
Sturmey: -
Single-speed: -
© 2003-2019 Hugh Kern, All rights reserved.

We measured the naked weight of a 26" Bionx 500W wheel with a D500DV hub compared to the weight of a GoSwiss 500W wheel by HP Velotechnik. In spite of the appearance of more substance and weight, the Bionx wheel was significantly lighter than the GoSwiss wheel.

This is a custom build-up of an ICE Sprint X with a rear suspension, Bionx 350W electric-assist built into a 700c rear wheel, and 90mm Sturmey-Archer drum brakes.

Minoura makes a clever, strong, and lightweight strap-on water bottle cage holder that is useful for mounting accessories including electric motor batteries as well as water bottle cages.

Inspired Cycle Engineering is reknowned for blending comfort and efficiency in their hardshell carbon-fiber seat for the speedster VTX

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