SKU: 908471897

4iiii - Dual Side Precision Pro GRX RX810 Power Meter

Sale price$719.55 Regular price$799.50
Save 10%

Pay in installments of $199.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 11 - Aug 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

4iiii - Dual Side Precision Pro GRX RX810 Power Meter4iiii DUAL SIDE PRECISION PRO GRX RX810 POWER METER Ridden by the pros, the PRECISION PRO dual side power meters deliver all the benefits of 4iiii's left side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D power meter technology), plus a specific breakdown of left and right wattage. Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the

4iiii - DUAL SIDE PRECISION PRO GRX RX810 POWER METER 

Ridden by the pros, the PRECISION PRO dual-side power meters deliver all the benefits of 4iiii's left-side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D power meter technology), plus a specific breakdown of left and right wattage. Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the market.

  • 3D power meter technology (patent pending) measures tri-axial strain on the crank
  • Accurate, consistent data
  • Lightweight, compact design
  • Battery status indicator via 4iiii app
  • Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products
  • User-friendly app and configurable rider compensation scale factor
  • Easy setup and maintenance
  • Over-the-air upgrade capability for adding new features and updates
  • Weight: 25 grams (power meter only)
  • Data accuracy: +/- 1% error margin
  • Battery life: 100+ hours on 2032 coin cell battery
  • Battery status indicator: Alert at 15% battery power
  • For display compatibility click here
  • For service and software documents click here
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 908471897

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kristan P.
Grantham, US
★★★★★ 4
Good quality pillows
Color: White, Size: Queen Size Set of 2
These are very soft and supportive as advertised. W find them a little too thick for my taste (why I only gave 4 stars), but personal preference is very subjective with pillows. They are well made and high quality, and am happy with my purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
T
Verified Purchase
Troy D.
Lexington, US
★★★★★ 3
Overall, not that comfortable!
Color: White, Size: Queen Size Set of 2
Only okay. I find these pillows to be heavy, and not very conforming. Overall, not that great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
C
Verified Purchase
Casandra
Dallas, US
★★★★★ 5
goose down pillows.
Color: White, Size: King Size Set of 2
Since receiving them, these king-size white goose down pillows have truly transformed my sleep. They are incredibly soft and fluffy to the touch, so plush it's hard to believe they hold their shape. Sleeping on them is like lying on a cloud. The 100% cotton cover adds extra comfort: it feels cool to the touch, breathes well throughout the night, and helps me maintain a comfortable temperature while I sleep. Furthermore, the "reinforced fiber" structure is noticeable: after several weeks of use, the pillows retain their support; they don't clump or lose their shape, ensuring consistently good rest. I find they have the ideal balance between firmness and softness: firm enough to support my neck and head, yet plush enough to adapt to my posture without creating pressure. This has improved my nights; I sleep more soundly and wake up with less stiffness in my neck. In short: these pillows combine luxury, comfort, and durability. If you're looking to improve your sleep quality with soft, firm, and breathable pillows—especially in king size—these are perfect. Definitely one of the best investments you can make for better sleep.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
C
Verified Purchase
Chris
Waukegan, US
★★★★★ 5
Cooling pillow
Best pillow I’ve used in years
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
M
Verified Purchase
Marsha Shultz
Natrona Heights, US
★★★★★ 4
Nice pillows to sleep on
Nice to sleep on
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026

recommand products