Ultra Cell 4.1 Knee Brace Left
AsteriskKnee BracesSKU 2140680001
Asterisk

Asterisk Ultra Cell 4.1 Knee Brace Left

$342.00
Size

Ships to the lower 48. Bikes ship free, parts ship free over $99.

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About this part

The Asterisk Ultra Cell 4.1 for the left knee, sold on its own for replacing half of a set. The matched pair is listed separately. The 4.1 is the Ultra Cell 3.0 with the Carbon Cell patella cup fitted, to suit tighter, more elastic riding pants.

The cup is a patented three-piece design that collapses to a low profile when the knee bends, with parts replaceable in the field, in high impact Nylon 6 with thermo-formed EV50 foam. The A.C.M. frame is a carbon fiber epoxy matrix. The Asymmetri-Glide hinge adjusts from 0 to 30 degrees with condyle shims. Water resistant throughout with non-corrosive metals and composites.

Rider reviews

Questions riders actually ask

Every answer below is written by our fitment team, not a bot. Ask a new one and it gets answered within 24 hours.

Is the Ultra Cell 4.1 sold singly or paired?
This listing is the left brace by itself. Asterisk also lists the right brace separately and a matched pair, so you can buy one side or both depending on what you need.
Will this brace fit under tight modern moto pants?
Asterisk built the 4.1 around a collapsing three piece patella cup so the brace stays low profile when the knee is bent, which is aimed at the smaller, stretchier knee area on current pants.
Can I replace worn parts on this brace myself?
The patented three piece Tele-Tri patella cup is easily removable and designed to be changed in the field. It uses high impact Nylon 6 with thermo-formed EV50 shock absorbent foam padding behind it.
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$342.00