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$119.95 - $129.95

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Item #APN01AY

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14 Reviews
3.9 out of 5 stars
5 Star   5 4 Star   6 3 Star   1 2 Star   0 1 Star   2
All Reviews
20 days ago Indiana
Comfort5/5Durability1/5FitRuns Slightly Small

Was expecting a really awesome, long lasting product from Alpinestars, but disappointed in how weak this product was! The mount that connects the strap to the guard sticks up about a quarter inch and the plastic where it connects to the guard in thin and flimsy. Anything that hits the upper mount will rip thru the plastic of the guard as shown in the picture. The lower mount is protected since it's inside the boot.

Daveyboy 76 Verified Purchaser
3 months 23 days ago
Comfort4/5Durability5/5Performance5/5Style5/5FitRuns Slightly Small
Lots of protection

Seem like a pretty good knee guard. Feels like something in between a knee brace and knee guard. Sizing runs a bit small so keep that in mind. I’m 5’11” 250 lbs and the xxl was still a bit tight. Overall I’m really happy with them.

Colonial9 Verified Purchaser
3 months 27 days ago Midlothian VA
Comfort5/5Durability1/5Performance3/5Style5/5FitTrue to Size
Missing Nuts!

I have about 8 rides with these knee guards and find them very comfortable, they give good grip in the side of the bike as well. The problem I am having is with the bolts thru the side hinges. I noticed today after riding one of the side hinges is bulging out. The 2.5 allen bolts have a captured nut on the inside of the hinge and I am missing 1nut from each guard. I have always used Alpinestar boots (Tech 10's) and encourage our students at the dirt bike school to use Alpinestar boots as well because I feel they are safe, comfortable and highly durable. At this point I guess ill try to call Alpinestars and try to get some new hardware or run to Lowes and try to find some nuts to fit. Pretty disappointed that safety gear from the company I recommend has failed so quickly. Missing riding days because of safety gear failure is not cool! If I wasn't having this issue I would highly recommend these knee guards. Will update review after reaching out to find solution.

4 months ago
Comfort1/5Durability1/5Performance1/5Sizing - true to size?1/5Style1/5
Foam Over Knee Cap

Its just foam over the knee cap. I know foam is popular in equipment these days for some reason but in a hare impact you could easily still break your knee in these SX-1 knee guard. Alpinestars should stick to boots, everything else they make is wack.

Al Williams said Verified Purchaser
4 months 3 days ago Clifton Park NY
Comfort3/5Durability5/5Performance5/5Sizing - true to size?4/5Style5/5
Solid protection

I’ve had multiple knee surgeries and wanted something a step above .
This are perfect .

Kolbyab1295 Verified Purchaser
Over 8 months ago Sheppard Afb
Comfort5/5Durability5/5Performance5/5Sizing - true to size?5/5Style5/5
Well built

I bought these for more knee protection than normal knee pads, these check all of the boxes. It’s my first time wearing knee protection on a dirtbike but quickly adjusting to them being there

1 year ago Michigan
Comfort5/5Durability5/5Performance5/5Sizing - true to size?5/5Style5/5
The BEST knee guard

Was looking for shin guard replacement. Didn’t want knee brace, and wanted CE rated protection. This brace was the last one I tried. Fits great, with knee brace socks you won’t have any issues. The tare set and forget adjustments, with the button clasp. adjust your straps and use the clips after that. They don’t take up too much room in the boot / shin area and feel great on the thigh. Lots of protection coupled with excellent fit and feel.

to he Verified Purchaser
1 year ago Los Angeles, CA
Comfort3/5Durability5/5Performance5/5Sizing - true to size?5/5Style5/5
Good protection

however, uppuer band is not comfortable

1 year 1 month ago Oregon
Comfort3/5Durability5/5Performance4/5Sizing - true to size?4/5Style4/5

I bought these because I ride on very rocky hill climbs and cliffs and as far as protection goes there pretty good well made fit really good the only draw backs are that I couldnt really bend my knee very well to kick start my bike and the straps on the back dig into my legs and rub the skin raw other then that there great. A pair of knee sleves to go with will be well worth it

1 year 2 months ago Chile
Comfort5/5Durability5/5Performance5/5Sizing - true to size?5/5Style5/5
Really good

I bought this like 5 months ago and they are perfect

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2 Questions
Answered:   2
Not Yet:   0
Q: Is the knee cover made of a hard shell? Or it it cloth? 
Over 8 months ago
Dan Gearhead
Top 25
Over 8 months ago
A: This Alpinestar SX-1 knee guard is constructed from a performance polymer blend with Thermoformed foam backing for excellent comfort against the skin.
Q: How is "joint width" measured?
2 years 11 months ago
Alpinestars SX-1 Knee Guards
Expert MotoSport Staff
2 years 11 months ago
A: Measurements are taken 3.9" (10cm) above and below the knee. (see attached sizing chart)
# Part Numbers
Product Variant Manufacturer Part #
White / Small/Medium 6506316-21-SM
White / Large/X-Large 6506316-21-LXL
White / XX-Large 6506316-21-2XL
Black/Anthracite / Small/Medium 6506316-104-SM
Black/Anthracite / Large/X-Large 6506316-104-LXL
Black/Anthracite / XX-Large 6506316-104-2XL
Black/White/Red / Small/Medium 6506316-123-SM
Black/White/Red / Large/X-Large 6506316-123-LXL
Black/White/Red / XX-Large 6506316-123-XXL
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