Bicycle to tricycle conversion kits

What you're looking for is a tall order. Most of the trike conversion kits you'll find in the USA are for lowrider bikes, and would be inappropriate. Most of the conversion kits for adult bikes come from the UK, where triking has some presence as its own sport, but those typically drive only one wheel.

There is a conversion kit that replaces the front end of your bike, which simplifies the drivetrain situation. (We try to avoid specific product recommendations here, but this is such a narrow niche that I don't think we can avoid it here.)

If it's in your budget, you might also want to look at adding power assist to your bike, which doesn't require a license.

Finally, you said that recumbent trikes are out because of your back. There are a some recumbent-trike makers and dealers that do adaptive work, and there are a number of adaptive-trike specialty manufacturers. So there might be a way to make that work.

It might be more practical to invest in a trike that is a trike by design through and through. I am not sure what your budget is like, but this sounds like what you need. It's still a Pedal powered tricycle, but the electric assist will help you up that hill, especially if you are loaded down with groceries, etc. https://www.vitalitymedical.com/ewheels-ew-29-electric-trike-red-bundle.html

Contact Geoff (in England) at Trykit on the web. Makes a nice trike conversion kit for bicycles. I've ordered fr him and found him excellent and v. helpful

I'm new to this forum, so am not entirely sure about posting. I saw this post and had to contribute some of my experiences with the two trikes I have owned.

I have owned both a conversion style and factory style trike. The conversion was a three-speed hub, coaster brake set-up, and the second was a three speed coaster brake with a limited slip differential.

The factory one was hell on any loose terrain as the limited slip differential allowed either wheel to spin backward if not firmly planted on the ground, thereby completely negating braking action. Not fun on a gravel road or other slick surface. I overcame this with dual caliper brakes, one on each wheel, running no front brake at all. Any purchase you make for a trike that drives both wheels should involve a check of both braking action and drive action to be sure both wheels get equal action.

The conversion one was a Schwinn conversion I removed from an older trike. It was one wheel drive, and I laced the original hubs to 24" mountain bike rims. It hade one of those 3-speed chain pull hubs in it. I added a standard derailer and the cranks from a 21-speed bike to it, fixing the rear derailer so it only acted as tension for the chain to allow for use of the front derailer. This allowed me to have 9 forward speeds, ànd smaller front sprockets helped alot for the hills. I again used dual rear caliper brakes and no front one.

I am planning a 21-speed 3 wheel conversion using one if the Shimano 7-speed kits this summer. I live in Alaska, so riding year round is an ordeal. If you would like to get updates as I perform my conversion, hit me up at [email protected]. I will try to get this done over the summer, and intend to test it out before the snow hits.

Hope some of this was useful to you or someone else.

Related:
This Bike Chair Allows Someone With Limited Mobility To Go For a Bicycle Ride

https://odditymall.com/disabled-bike-chair