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Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs

09-28-11, 09:18 PM

Replies: 17

Shimano Biopace - For Those Aching Knees.

Views: 12,191

Posted By Sixty Fiver

Helps with both... my left leg does not...

Helps with both... my left leg does not transition well and there are some dead spots in that pedal stroke (some muscles get no signal) but can push some through a limited range and helps the right...

Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs

09-28-11, 05:50 PM

Replies: 17

Shimano Biopace - For Those Aching Knees.

Views: 12,191

Posted By Sixty Fiver

This or something like rotor rings and perhaps an...

This or something like rotor rings and perhaps an orthopaedic insert might provide a solution... many people have legs that are of different lengths and have inserts made up.

Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs

09-28-11, 10:00 AM

Replies: 17

Shimano Biopace - For Those Aching Knees.

Views: 12,191

Posted By Sixty Fiver

Q rings work on the same principle... have yet to...

Q rings work on the same principle... have yet to try them but reviews have been very good.

Nice that they sell single chain rings.

Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs

09-28-11, 07:36 AM

Replies: 17

Shimano Biopace - For Those Aching Knees.

Views: 12,191

Posted By Sixty Fiver

Biopace did not come in a 4 bolt 64 bcd...

Biopace did not come in a 4 bolt 64 bcd pattern... it predates this and comes in 110 bcd (touring / atb) and 130 bcd(road)

Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs

09-27-11, 09:51 PM

Replies: 17

Shimano Biopace - For Those Aching Knees.

Views: 12,191

Posted By Sixty Fiver

Perhaps Rotor rings... the non round chain ring...

Perhaps Rotor rings... the non round chain ring has made a bit of a comeback of late and is seeing success at the professional level.

Still sad that a design like Biopace was discontinued as it...

Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs

09-27-11, 03:53 PM

Replies: 17

Shimano Biopace - For Those Aching Knees.

Views: 12,191

Posted By Sixty Fiver

Shimano Biopace - For Those Aching Knees.

Those of us who were riding in the mid eighties probably remember when Shimano introduced their revolutionary Biopace chain rings and while many of us really liked them they did not gain widespread...

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