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Alpinestars Gravity Shorts

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Item # APN0052

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Item # APN0052


Every aspect of Alpinestars Gravity Shorts is specifically designed to do one thing–keep you comfortable while you hammer down tight, sketchy singletrack. This is easier said than done, but Alpinestars has been in the game long enough to know how to keep you safe (relatively) and comfortable while you throw down on your your bike.

Alpinestars built Gravity Shorts with strategically located stretch and vent panels. On the back and in the crotch, spandex panels stretch for an unlimited range of motion. You won't ever feel Gravity shorts bind up while you ride. This also adds to the shorts' durability, because it stretches rather than tears. The synthetic fabric pulls moisture away from your body to keep you dry and comfortable, even in the heat of the summer. Alpinestars also designed Gravity shorts with cooling mesh panels on the thighs that push hot, stale air out and allow fresh, cool air to flow in and around your body. On the back of the shorts, an abrasion-resistant ripstop panel adds durability and protection.

The Gravity Shorts are designed to fit over your knee pads. Dual tabbed hook-and-loop straps at the waist allow you to exactly dial in your fit. The hidden front zip makes it easy to get in an out, and TPR details and printed graphics add a little style.

Alpinestars Gravity Shorts come in Black/White, Blue Marine/Violet, Yellow Fluo/Black, and Red/Black and are available in even sizes 26 to 40.

Tech Specs

1 thigh
polyester, mesh, elastane
Recommended Use:
freeride, DH

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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Here's what others have to say...


Heavy Duty Bike Trunks

  • Familiarity:I've put it through the wringer
  • Fit:True to size

The material is high strength and durable. Has Ventilation vents that really cool the crotch. The pockets are a down side for c-phone and keys, not compatible, really. The adjusting bands for waist are really the best. No Chamois liner, bummer. If I had more money I'd buy out there inventory from the sale.


Great shorts!

  • Familiarity:I've used it several times

These shorts are very comfortable. I've used them on several 3 to 4 hour xc and all mountain rides with some road or xc style shorts underneath. They didn't get to hot. I wear padded compression shorts under them for some rougher rides and they work great. The shorts work well with knee pads. They're very durable had some sliding crashes with them on and they've held up just fine. I have not been able to use these shorts at a bike park for some serious all day dh, because the parks haven't opened yet. I have high hopes they will succeed the demanding riding I will be doing when they do open.The Gravity shorts are comfortable durable and look badass!!! Highly recommend.