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- USA
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Industry Nine Hydra 2 Classic Rear Hub - 12 x 157mm, 6-Bolt, XD, Black, 28HCompletely re engineered using insights gleaned from more than 100,000 original Hydra hubs in the field, Hydra 2 features a newly designed 65% thicker axle, larger 6903 bearings with new labyrinth seals, and enlarged pawl pockets that ensure bombproof durability under the most demanding conditions. 6 Pawl Hydra 2 Freehub Body provides a groundbreaking 870 P. O. E. Hydra 2 Freehub body engages every . 41 degrees yielding telepathic control Refined
Completely re-engineered using insights gleaned from more than 100,000 original Hydra hubs in the field, Hydra 2 features a newly designed 65% thicker axle, larger 6903 bearings with new labyrinth seals, and enlarged pawl pockets that ensure bombproof durability under the most demanding conditions.- 6 Pawl Hydra 2 Freehub Body provides a groundbreaking 870 P.O.E. Hydra 2 Freehub body engages every .41 degrees yielding telepathic control
- Refined drive ring and increased tooth counts on each pawl provide increased relability and engagement with less drag
- Designed specifically for trail, enduro, and downhill riders with the strength to handle full-power ebikes
- Scalloped flanges on Hydra2 j-bend hubs increase overall strength, and remove excess material for a lighter, stronger hubshell
- Revised axle design is 65% thicker with an improved stress washer design
- Larger, 5.5mm pawl pockets that evenly distribute force 26% better, preventing deformation of the pockets over years of use
- Full-contact radial lip seals paired with proximity dust shields keep grit and grime out, and lubrication in
- Durable 6903 bearings are used throughout for smooth, long-lasting performance
Product Specifics
- Rear Axle: 12mm Thru x 157mm
- Cassette Body Type: SRAM XD
- Color: Black
- Skewer Included: No
- Bearing Type: Sealed Cartridge
- Weight: 292
- Designed for ebike: Yes
- Defined Color: Black
- Spoke Interface: J-Bend
- Hub Drilling: 28
- Hub/Brake Compatibility: 6-Bolt Disc
Today's Stock Status
2 Available to ship in 2-4 Business Days
UPC: 197769101977
EAN: Not available
Manufacturer Part Number: H3MBXBXG2
HU2959
190202-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1916 reviews
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Product Reviews
★★★★★ 1
Disappointed
Color: Gray, Size: Queen (2 Count)
Not cooling and bad fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025
★★★★★ 5
They work!
Color: Gray, Size: Queen (2 Count)
They do keep my pillow cool!
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Reviewed in the United States on September 8, 2025
★★★★★ 4
Interesting pillowcase that does run cool to the touch
To begin: I'm a 64 y/o woman who still gets hot flashes, despite air-conditioning and a fan blowing on me at night. It's the sheets off then blankets on routine that so many of us know. I ordered this pillowcase hoping that I would find some kind of relief in the night, even it was only for my head.
The fabric is very unusual. It's a silky nylon blend, very swishy and soft. It reminds me of luxury, expensive women's lingerie. It's extremely slippery, moreso when you have your head on it; there certainly won't be any resistance or pulling on the hair all night.
I washed it before using it, put it in a mesh bag to protect it from getting snagged. It washed and dried as good as new. One thing to note: because it is so slippery the pillow may want to slide a little out of the pillowcase.
I slept quite well and did not experience any heat or sweating on it.
The reason for the 4* and not 5* is the price, at almost $20 it is a bit pricey for a rectangle of nylon fabric. I could see if it were real silk, but it's not. Otherwise it's exactly what it purports to be.
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Reviewed in the United States on July 29, 2025
★★★★★ 5
The perfect cooling pillows!!
Photo taken after about half of the filling was removed and many months of use. Still my favorite pillows ever!
I absolutely love these adjustable cooling pillows! They keep me cool all night long (must use without a pillowcase for cooling effect.)
They arrived with enough filling to make them super firm and extremely thick. They took several hours to fully puff up. I removed about half the filling to make a more plush pillow which I prefer and they’re still thick and comfy. They offer the perfect amount of support. I’m actually sleeping better!
Bonus: I saved the extra filling and used it to stuff throw pillow covers.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Comfy!
I did have to take some stuffing out for my comfort. After that it is amazing! Love that the pillow is cool!
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Reviewed in the United States on April 29, 2026
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