Name: Alpinestars Nucleon Flex Plus Knee Protectors
Brand: Alpinestars
SKU: 2704-0509
Price: 25.95 USD
Availability: InStock

Alpinestars Nucleon Flex Plus Knee Protectors - Motor Psycho Sport

$ 25.95

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Size

Color

Black

Quantity

Authorized Dealer

No Sales Tax, except California

90 Day Free Returns & Exchanges

Free & Fast Shipping U.S. Lower 48

Earn 5% Ride Rewards on every purchase

We are an Authorized Dealer for all the Brands that we sell. Below are the links to our distributors who authorize us to carry what we sell.

Helmet House is our distributor for...

SHOEI - HJC - ALPINESTARS - CORTECH - TOURMASTER - SENA - SIDI

https://helmethouse.com/dealers/4955008-motor-psycho-sport.html

Parts Unlimited - Drag Specialties - LeMans Corp is our distributor for...

ARAI - ALPINESTARS - THOR - ICON - MOOSE RACING - Z1R - SENA - DUNLOP - METZELER - FMF - MOTUL - MAXIMA - RENTHAL - YOSHIMURA - TWIN AIR - ODI - 100% - SPECIALIZED - CRANKBROTHERS - MICHELIN - AGV - FACTORY EFFEX - AFX - AND MORE!

https://www.parts-unlimited.com/find-dealer (Type in 91320 for our zip code)

Parts Unlimited is the largest powersports distributor in the United States. They are now the exclusive distributor for Arai Helmets in the U.S.. Their house brands are Icon, Moose, Thor, AMS, Z1R, Arctiva and more.

WPS - Western Power Sports is our distributor for...

ALPINESTARS MX - GAERNE - FLY RACING - ODI - FMF - SCORPION - MIKA METALS - HIGHWAY 21

https://www.wps-inc.com/dealer-locator?distance=25&location=91320

Western Power Sports or WPS is the faster growing distributor currently. Their house brands are Fly Racing and Highway 21.

Turn14 Distribution is our distributor for...

ANSWER - MSR - PRO TAPER - FMF - GAERNE - ACERBIS - ATHENA - DRAGONFIRE - CYCRA - EVS - FIRSTGEAR - SPEED & STRENGTH - GIANT LOOP - RIVER ROAD - USWE - VANCE AND HINES - WISECO

https://www.turn14.com/about

Turn14's house brands are Answer, MSR, Pro Taper, Renthal, Vance & Hines, Firstgear, and Speed & Strength.

O'NEAL & OGIO POWERSPORTS is our distributor for...

O'Neal - OGIO

O'neal doesn't have a dealer locator but we buy direct from O'Neal and also use them for OGIO Powersports as they are the U.S. distributor for OGIO POWERSPORTS. OGIO is owned by Callaway Golf.

Bell Helmets Dealer Locator

https://troyleedesigns.com/pages/store-locator (Type in 91320 Zip Code)

Features

Ergonomic design that allows high levels of movement
Cell structure ensures maximum comfort and ventilation
Slim design makes the protector discreet off the bike
Protector cells are bridged together, allowing for an adaptive shape and enhanced levels of comfort and protection

Earn [points_amount] when you buy this item.

Earn 5 points for every order placed

The more you spend, the more you save.

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from 564 reviews

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Dave Glaser

05/10/2025

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I wore them for the first time last Sunday and the screws came off and the right lower buckle just hanging.I paid $532.00 for these boots! Poor quality control!

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05/09/2025

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Amazing helmet

I will admit I was skeptical at first because the price seemed way too good to be true. But the helmet was delivered pretty quickly and packed very nicely. I really couldn’t tell it was an “open box” since everything was included and I didn’t see any scratches on the one I got. In the future, I wouldn’t hesitate to buy from this site.

As for the Shoei, I’ve been using a Ruroc Atlas 4.0 for the past few years and I will gladly admit I regretted my purchase. I should’ve spent the money on the RF1400 instead. My head isn’t getting rocked around at highway speeds on a windy day on my Harley and the wind noise is almost nonexistent compared to the Ruroc (with earplugs in). My only gripes are the liner isn’t as soft as I would’ve hoped to be for the money and replacement shields are crazy expensive.

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Great boot

Love the support and they’re semi comfortable to walk in. I ride AdV and adventure boots just don’t have the support but motocross boots have too much support and no traction on the bottom. These are the perfect in between in my opinion.

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I purchased a pair of Gaerne boots from Motor Psycho Sport and could not be happier. They by far blew everyone out of the water on price. They shipped out fast and had them in a few days. I will be buying from them again & again.

David Bayless

05/01/2025

Motor Psycho Sport

Great Boots

First pair of Gaerne boots. The SG22 boots are the best I have ever put on my feet. Did not take any time to break in. Took them out of the boxes and hit the track.Very happy with the boots, they fit true to size for me , I wear a size 11 in shoes and ordered an 11 in these boots.

David Bayless

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Received my RF 1400 helmet, its pristine for being an open box/ used product. Great value and I can't find any issues. Ill continue to use MP for all my cycling needs. Thank you!!!

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04/26/2025