Replies to This Discussion

Permalink Reply by Tobias Gibson on October 8, 2014 at 13:21

I think the reason you have such a small front sprocket is because of the weight the byke is designed to haul.   A larger front sprocket would also mena you have to apply more effort to get that back wheel moving.  This bike is made for hauling not speed.  This also explain why it uses a pedal brake.  (that said, I'd probably add hand brakes for the front tires as well as the attached trailer.

Permalink Reply by James Cole on October 8, 2014 at 16:47

You're correct Tobias. If in my example we went from the 36 tooth sprocket to a 48 tooth, we would increase the rotation of the back wheel to a 4 to 1 ratio, but also greatly increase the exertion to turn the crank. I suspect this trike was spec'ted out to travel between 1 or 2 miles for deliveries.

Putting brakes on the trailer would be difficult, but not impossible. The reason I would add braking power is to control downhill speed and for holding on uphill pushes.

Tobias Gibson said:

I think the reason you have such a small front sprocket is because of the weight the byke is designed to haul.   A larger front sprocket would also mena you have to apply more effort to get that back wheel moving.  This bike is made for hauling not speed.  This also explain why it uses a pedal brake.  (that said, I'd probably add hand brakes for the front tires as well as the attached trailer.

Permalink Reply by Tobias Gibson on October 8, 2014 at 18:46

Yep.  no doubt that bike would work better in say  Dallas Texas than San Francisco California

Permalink Reply by James Cole on October 9, 2014 at 1:06

Tobias, Right again.

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