Free Shipping Over $39.99

Orders $39.99 or more ship free within the contiguous U.S.

Free Shipping Policy

No Restock Fees

Doesn't fit? Don't love it?

Return any unused item within 30 days for a full refund.

No-Hassle Returns

  1. Obtain an RA number
  2. Package your product
  3. Send it back to us!
Return Policy

Price Match Guarantee

Found it for less?

RevZilla will match any advertised price on new merchandise available through another authorized U.S. dealer.

Price Match Policy

Elite Service Rating

Our goal is to provide the best possible shopping experience to every enthusiast who visits RevZilla.

See what our customers are saying about us:

Customer Reviews

ZillaCash Rewards

The ZillaCash rewards program is very straightforward - if you have a RevZilla account, you may already be taking advantage of ZillaCash rewards. Review the following guidelines to see how easy it is to maximize your rewards and put your ZillaCash to work for you.

  • Earn and redeem ZillaCash credit automatically with each order - no fine print, no strings attached, and no hoops to jump through to cash in.
  • All you need is a RevZilla account to start earning - Simply log in each time you shop with RevZilla and we’ll take care of the rest, keeping more money in your pocket just for shopping with us.
  • Earn $5 for Each $100 You Spend on eligible products - up to a maximum of $30 ZillaCash per order for orders totaling $600 or more. Any ZillaCash you earn is automatically applied to the next purchase, so you can sit back, enjoy the ride and feel the savings blow through your hair.
Learn More About ZillaCash

We're sorry but all combinations for this product are currently out of stock.

You can be notified upon their arrival by choosing the options you are interested in and then entering your email in the box below.

Out of Stock

Alpinestars Bionic MX Knee Protectors

Item: P87407

The Alpinestars Bionic MX Knee Protectors have an articulated thermoplastic shell specifically designed for each knee for superior protection, support… Read More

$99.95
Learn More

Product Details

Alpinestars Bionic MX Knee Protectors

The Alpinestars Bionic MX Knee Protectors have an articulated thermoplastic shell specifically designed for each knee for superior protection, support and comfort. 

Features:

  • Articulated protector follows the movements of the knee joint
  • Impact resistant and ventilated thermoplast shell with aluminum reinforced knee cup for superior energy absorption
  • Ergonomically designed to fit the knees and the side of the bike with an asymmetrical form
  • Removable and impact resistant biofoam padding with a comfortable Lycra liner
  • Adjustable VELCRO® brand closures straps strategically placed to prevent skin abrasions
  • Durable billet aluminum hinges
  • Snap assembly for easy cleaning
  • One size
Product Style RevZilla Item # MFR. Product # Availability
Product Style Alpinestars Bionic MX Knee Protectors RevZilla Item #305291 MFR. Product #650-633-13 4XL/27040001 AvailabilityOut of Stock

Shipping

Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.

Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Product Description
Part Numbers
Shipping & Returns

Reviews & Questions

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 8 answers
Why did you choose this?
RevZilla Store
por que ya tube uno de estos y son muy buenos
ricardo C on Jan 4, 2015
Only product fitting my need.
Elliot Y on Jun 25, 2014
por que ya tube uno de estos y son muy buenos
ricardo C on Jan 4, 2015
Thought them to benefit me like knee sliders as I was a beginner and I ride canyons and do take some fast curve angles. But learned my lesson late..
Parvez S on Nov 19, 2014
Only product fitting my need.
Elliot Y on Jun 25, 2014
I planned to wear a knee protector on TOP of my pants. These looked the best and decent reviews just validated my decision.
Elliot Y on May 16, 2014
Got for off-road riding. I wear them under my desert riding pants. I love the full pivot. Not bulky - Fits nicely into the top of my boots. One-size-fits all is tough - My knees are a bit small so the fit is not exactly snug, so there is some movement there. At the end of a long day of riding they did ok. Slight digging, but minor. Didn't fall so I cant attest fully, but they seem like they'll hold up well when I do.
Ian C on Feb 10, 2014
I have had a pair of these for sometime now and found them really good. Due to a recent crash, I cracked my left guard so it is now scrap. So thought i would replace with the same and perhaps next time I break the right and still have a pair. Unless you guys can supply just one left guard ??
Robert T on Jan 2, 2014
Thought them to benefit me like knee sliders as I was a beginner and I ride canyons and do take some fast curve angles. But learned my lesson late..
Parvez S on Nov 19, 2014
I planned to wear a knee protector on TOP of my pants. These looked the best and decent reviews just validated my decision.
Elliot Y on May 16, 2014
do they come in pairs or i have to buy 2 ?
A shopper on Feb 20, 2012
BEST ANSWER: They come in pairs, there is a left and right that are marked.
are these ce certified?
A shopper on Mar 16, 2013
BEST ANSWER: The Alpinestars Bionic Mx Knee Protectors are not CE approved. For a higher level of protection with CE approval check out the Alpinestars Bionic SX Knee Protector.
7 Customer Reviews
7 3.5/5
Read All Reviews
2 Questions & 2 Answers
Ask A Question