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Trigger-shifters alternative for shifting with limited hand strength
Twist (grip) shifters are an inexpensive and reliable technology common on recumbent trikes. They have two main drawbacks:
- They are ergonomically mal-positioned for most vertical handlebar situations as they are intended to be gripped with the thumb and fore-finger, but, instead, are positioned at the heel of the hand.
- The twisting action to shift gears can affect the steering.
Due to the first drawback, people with limited hand-strength can have difficulty operating grip-shifts mounted in a vertical position.
We have been experimenting with alternatives to conventional grip-shifts on recumbent trikes and have mounted trigger / paddle shifters in several different positions with the intent of serving the needs of people with macro-movements, but limited hand-strength. Causes of limited hand-strength include stroke and other forms of full or partial paralysis, neurological conditions, and age.
The shifters shown worked well for some clients and potential clients with low hand-strength. The position seemed to be the best of all the positions we tried when used with macro push movements.
It would be relatively easy to re-arrange them to work in pull-only situations.
These shifters are quite reliable and almost as inexpensive as grip-shifters so the investment cost of this conversion is low.
People with stroke, Parkinsons, Ataxia, ALS, MS, and cerebral palsy could have improved shifting by using these shifters as shown.
Catrike has discontinued the venerable Road recumbent trike model.
Face-time with ICE. Ask all of your questions. Find out what happens behind the scenes. And, try trikes, trikes, trikes... including the fully automatic ICE Adventure electric trikes.
An inexpensive hitch-mount rack for folded recumbent trikes. For example, the ICE Full Fat big-tired adventure tricycle.
Azub will be at AlphaBENT on Wednesday, October 23 to show the latest Czech recumbent technology. Come to for test-rides, and bent-talk.
Catrike has made wider hubs with through-axles standard equipment on all large-wheel models. This change affects the following recumbent trike models: Expedition, 559, Dumont, and 700. The change promotes laterally stronger wheels and prevents movement within the dropouts under load at the expense of compatibility with equipment such as electric hub moters that are designed to the older 135mm dropout widths.
2019 Norcal FARA (Friedrich's Ataxia Research Alliance) Ride coming up June 1, 2019.
Join Kyle and Team FARA to kick this debilitating disease!