Alpinestars RK-7 Plasma Knee Braces - Black/Red - Medium OPEN BOX [MPN: 6500825-13-M]

Skip to product information
1 of 4

Brand: Alpinestars MPN: 6500825-13-M
Up to 20% offSold out
Regular price $399.47
Sale price $399.47 Regular price $499.95
Ships same day
Out of stock

OPEN BOX RETURN. UNUSED ITEM WITH MINOR HANDLING MARKS. ALL OPEN BOX ITEMS ARE SOLD AS-IS, NO RETURNS PLEASE!

With a slim ergonomic design offering a high level of offroad performance and comfort during dynamic movement, the Supertech RK-7 Knee Brace has been engineered to provide superior knee support, while still being lightweight, breathable, comfortable, and protective. This knee brace features a free-floating Nucleon Plasma knee protector encased in an innovative asymmetric fiber reinforced frame construction for enhanced levels of rigidity. This brace provides optimal structural integrity, rigidity and comfort, and thus reduces the risk of sustaining injuries to the medial and lateral collateral ligament, the anterior and posterior cruciate ligament, and the lateral and medial meniscus. The replaceable knee cups are constructed with a polyurethane outer shell backed with a Nucleon Plasma protector for the optimum blend of impact protection, flexibility and scratch resistance. The replaceable strategically positioned upper and lower patella extensions ensure maximum coverage regardless of the flexion or extension angles. The extremely stable, slim-design four-point hinge system perfectly follows the articulation of the knee while the extension stops, which are available in a range from 0 to 30 degrees, assist in setting the brace to the desired maximum opening angle. The stainless steel bushings in the four-point hinge system have an anti-oxidation treatment. Nucleon Plasma is a viscoelastic material engineered from bio-based polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies. Lightweight and highly ventilated, the knee protector offers strong impact force dispersion and absorption while ensuring maximum coverage in all riding positions.

  • USDA certified bio-based eco-friendly and sustainable impact absorbing material.
  • Soft-touch thermoformed padding ensures the highest levels of rider comfort while keeping the knee brace securely in position. Replaceable as a spare part.
  • Soft-touch thermoformed condyle padding comes in different thicknesses for a customized fit. Replaceable as a spare part.
  • Nucleon Plasma embedded into the shin padding for additional protection.
  • Equipped with padded X-straps backed with a nonslip material to ensure the knee brace remains securely in position while riding.
  • X-straps are profiled to avoid pinching the back of the knee when fully flexed.
  • High tensile strength buckles are robust while still being flexible for easy strapping and adaptivity.
  • Upper and lower buckles are easily locked into the closed position by a keyhole snapping system.
  • Easily exchangeable extension stops (0, 5, 10, 15, 20, 25 and 30 degrees). Replaceble (as spare parts )
  • The RK-7 Knee Brace is available in four sizes (S, M, L & XL) for a more personalized and secure fit.
  • Knee protector: EN 1621-1:2012 LEVEL 1
Age/GenderAdult
Collection Release Year2025
ColorBlack / Black/Red / Red
Dimensions46 in x 22 in x 18 in
ModelRK-7 Plasma
MPN6500825-13-M
MPN Alt482-00072M
Product NameBrace
Product TypeProtective/Safety
SizeM / Medium
TypeKnee
UnitsPair
Weight4 lb 4 oz


FAQ

How do I tell if a part will fit my ride?

Not sure if a part fits your ride? No problem—we’ve made it easy! You’ll find a fitment tool right on every product page (and on our homepage) to help you check compatibility with your vehicle. If you’re still unsure, just reach out—we’re always happy to help you find the right fit.

Does Motomentum price match?

In many cases, yes we do! We’re all about giving you the best deal, so if you find a lower price elsewhere, let us know. You can check out all the details in our Price Match Policy.

Do you offer warranties on your products?

At Motomentum, we stand behind the products we sell because we only carry brands we trust. Most of our items are covered by the manufacturer’s warranty, but don’t worry—we’re always here to help. If you ever run into an issue, reach out to us first. We’ll gladly assist with warranty questions and help you navigate the process to make sure you’re taken care of.

What payment methods do you accept?

We accept Apple Pay, Discover, Google Pay, MasterCard, PayPal, Shop Pay, Venmo, & Visa. We also offer a "Buy Now, Pay Later" option with Shop Installments through Shop Pay.

What is your return policy?

Motomentum accepts returns within 45 days of delivery, as long as items are unused, unaltered, and in resellable condition with all original packaging, tags, accessories, and paperwork included (some exclusions apply). See our full Return Policy or start a return from your orders page.

How much is shipping?

If you’re in the continental U.S., odds are good you’re getting free shipping. And how fast is it? Most orders arrive in 2–3 days. Sometimes faster, especially if a warehouse near you is locked and loaded.

We ship most items free of charge, unless it’s the kind of thing that won’t fit in your trunk (unless you drive a box truck). Oversized stuff may cost a little extra—but we’ll always keep it real with you upfront.

Need it even quicker? At checkout, you’ll usually have 2 express options ready to go—because sometimes, you just can’t wait.

Bottom line: we want you to get your gear fast, at the best price, with no surprises. Check out our Shipping Policy to see all the details.

Can I pick my order up instead?

Absolutely! Just give us a quick shout before you order so we can double-check things for you. Since we ship from multiple locations across the country, your item might not be at our HQ—but don’t worry, that usually means it’ll reach you even faster!

How do I join the MotoMoney Loyalty Program?

It’s easy — and free! Just create a Motomentum account, and you’ll automatically be enrolled in the MotoMoney Loyalty Program. From there, you’ll start earning points on eligible purchases right away. No extra steps or sign-ups required. If you already have an account, view your Loyalty account and make sure your status is turned on (green).

How do I become a Motomentum Member?

It’s easy — and free! Head on over to our Membership page to sign up. We’ll email you all the details, plus your exclusive Motomentum Members-only coupon code.

Where can I find your discount codes and deals?

You can find all our current discount codes and deals in one handy spot right here. Check it out anytime to snag the latest savings!

To see more, visit our full list of FAQ.