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MTB brake system for finger amputees (university project)

668 Views 11 Replies 8 Participants Last post by  AlexGunn
Hello, I’m a final year undergraduate student at Bournemouth University studying product design. For my major project I have decided to develop a product for mountain bikers with a finger amputation who struggle to use the bicycle’s brake levers.

I have created a short questionnaire with google forms that takes 5 minutes to complete. If you are a mountain biker with or without a finger amputation it would be a great help if you have a spare 5 minutes to complete the questionnaire. This will provide a clearer understanding of how such a product may be used.

You do not need a google account to complete the questionnaire.

Link to the questionnaire

Thanks for your time
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There are setups available to allow actuation of front and rear mechanical disc brakes from one lever. I ride with a guy that uses this setup and it seems to to work pretty good for him. Hope also has setup where they combine both front and rear levers on one side.

Hope Tech 3 X2 Duo Disc Brakes - Operate 2 Brake Calipers from One Single Hand
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I used to have a classmate that had a wood shop accident forcing him to put both brakes on one side to ride.

this was back in the late 90s though.
there is a user here 'Man W/ One Hand' man w/ one hand that used to use some custom setups i think...
There are setups available to allow actuation of front and rear mechanical disc brakes from one lever. I ride with a guy that uses this setup and it seems to to work pretty good for him. Hope also has setup where they combine both front and rear levers on one side.

Hope Tech 3 X2 Duo Disc Brakes - Operate 2 Brake Calipers from One Single Hand
Hi BrianU, Thank you for the suggestions :), ill make sure to have a look at these setups.
Hi Harold, just had a look at the outbraker setup. Seems like a clever piece of kit, might find a way to incorporate it into a concept.
thanks :)
Seems like finding the correct dynamic power to the front/rear is the trick. My thoughts turned to the idea of a dive "sensor" that would reduce the pressure to the rear, keep it from locking up. Maybe as the fork compresses while the front brake is engaged a bypass valve opens dropping the pressure to the rear, could be mechanical in nature using a cam...
One lever with a proportioning valve is what I would run.
Hello, I’m a final year undergraduate student at Bournemouth University studying product design. For my major project I have decided to develop a product for mountain bikers with a finger amputation who struggle to use the bicycle’s brake levers.

I have created a short questionnaire with google forms that takes 5 minutes to complete. If you are a mountain biker with or without a finger amputation it would be a great help if you have a spare 5 minutes to complete the questionnaire. This will provide a clearer understanding of how such a product may be used.

You do not need a google account to complete the questionnaire.

Link to the questionnaire

Thanks for your time
I am curious to see where you idea and concept goes. I am left handed and I lost part of my middle finger down to the first digit and my ring finger down to the first digit on my left hand.

I filled out your questionnaire.
Seems like finding the correct dynamic power to the front/rear is the trick. My thoughts turned to the idea of a dive "sensor" that would reduce the pressure to the rear, keep it from locking up. Maybe as the fork compresses while the front brake is engaged a bypass valve opens dropping the pressure to the rear, could be mechanical in nature using a cam...
Hi NoCanSurf, thank you for the suggestion, a dive sensor would be a nice way of distributing braking pressure between the front/rear calipers
One lever with a proportioning valve is what I would run.
I am curious to see where you idea and concept goes. I am left handed and I lost part of my middle finger down to the first digit and my ring finger down to the first digit on my left hand.

I filled out your questionnaire.
Hi Sego, Thank you for completing the questionnaire:)
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