This is a standard GTRO for a full-size bicycle.
It works with a single-speed hub, rear derailleur and internal geared hubs (IGH).

30-day money-back guarantee.

This product is currently out of stock and unavailable.

SKU: 1-2 Category:


In a package you get:
1. GTRO gearbox (right crank)
2. left crank
3. dedicated bottom bracket
4. shifter with a shifting cable
5. axle bolts and cable ties

Pedals not included.

If you cannot find GTRO for your bike, please email us and we’ll advise if we can deliver a GTRO for you –

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Additional information

Weight 12 kg

Black, Silver


Rapid-fire, Twist-grip

Bottom bracket

68 mm, 73 mm, 80 mm, 100 mm (Fat bike)


Chainring 28T, Chainring 38T, Adapter (130BCD, 5 bolts) for chainring or beltring