Recent content by cjh

Here's the Chinese copy...

Looks like the Salsa Bucksaw.

People need to keep in mind that this aimed primarily at replacing farm bikes on the farms. Plus it is silent for those early morning starts they do without waking the rest of the household.

NZ allows 300W and a throttle with no speed limitation.

Thanks spinningmagnets. If I want to use a Cyclone and run 24" wheels, I know I need 420rpm at the wheel to run 30mph. How do I work out the sprocket sizes through the system? EDIT: If I understand correctly I would need to be spinning the IGH at 840rpm in 3rd gear to reduce load on the IGH?

Thanks guys, looks like the 3-speed is the answer then. I have never done this before so how do I do the calculations to work out what gearing I need where, when using a 3-speed IGH as a jackshaft?

Spinningmagnets, do you think the SRAM Automatix 2-speed automatic hub is strong enough to use as a mid-drive jackshaft? What do you think its limit might be?

Basically looks like they have taken the concept from the Mando Footloose and made it into a kit. http://www.mandofootloose.com/en/?nation=us

Sussex is owned by a Chinese manufacturer and still available. http://www.chainlessbike.com.cn/

I don't think a Xiongda can compare to a Cyclone, just a slight difference in power.

Spinningmagnets, have you ever looked at the SRAM Automatix 2-speed automatic hub that uses a centrifugal clutch? https://www.sram.com/sram/urban/products/automatix http://mccraw.co.uk/sram-automatix-review/ http://www.sheldonbrown.com/automatix.html...

Good article. How about the Nexus 3 as a jackshaft with the Cyclone? What do you see as its power limit?

Have a look at the overun braking on the Carla Cargo trailer. http://www.carlacargo.de/en/ You might be able to adapt the concept. Some pics http://www.gizmag.com/carla-cargo-bike-trailer/43044/pictures#7 There are some big closeup pics on Flickr too if you download in original size...

Spinningmagnets, did you also test the Sturmey-Archer 5-speed RX-RK5?

Try talking to the Australian Competition and Consumer Commission. https://www.accc.gov.au/consumers/complaints-problems/make-a-consumer-complaint