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GPR50 Hydration System

GPR50 Hydration System

4.9
Rated 4.9 out of 5 stars
21 Reviews
$650.00
$650.00
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The GPR50 is a fully integrated hydration system for two-wheel adventurers. It combines in-helmet water delivery, a wireless handlebar remote, and a 50oz hydration pack with onboard controls and haptic alerts.

Within the FluidLogic app, our proprietary algorithm takes your biometrics and environmental conditions to calculate your estimated sweat loss and generate a personalized hydration plan for your ride. Vibration prompts let you know when it’s time to drink, and a quick press on the wireless remote delivers water instantly—without taking your hands off the bars.

Used by pros in racing series like SCORE Baja, US Hard Enduro, and GNCC, it delivers hydration right when it counts. The GPR50 is built for riders who push the limit—on the track, trail, or anywhere in between.

What’s Included

GPR50 Hydration Pack:
Backpack, water bladder, USB-C charging cable (phone not included)

In-Helmet Hydration Delivery Kit:
Compatible with both open and closed-face helmets

Hydration Remote Kit:
Wireless remote, handlebar mount, clutch lever sleeve

Key Features

Intelligent Hydration App:
The FluidLogic app takes your biometrics and environmental conditions to estimate your sweat loss and create a hydration plan suited just for you.

Haptic Reminders:
Vibration sensors in the shoulder strap deliver haptic reminders when it's time to drink, ensuring optimal hydration throughout your activity.

Wireless Remote:
Our wireless hydration remote can be mounted to your handlebars or clutch lever to deliver water instantly without losing your grip or focus.

In-Helmet Water Delivery:
Customizable options fit almost any helmet for hassle-free hydration delivered directly to your mouth at the push of a button.

Reservoir Refill Pump:
Keep downtime in the field to a minimum with our powered refill capability. Simply submerge your fluid line in a water source and press the refill button on your pack.

Specs & Material

  • High performance pump assembly: Precision microdose accurate to within 10% with user calibration, minimum dose from 5ml, fill time of 2.5 mins, and 10ml dose takes maximum 1 second
  • Non-drip design
  • Built in control panel with Off/On-Session Start-End
  • Refill and dispense buttons plus haptic feedback
  • Four segment battery gauge
  • 2500mAh Lithium-battery (will fill and dispense reservoir 10 times from a full charge)
  • Battery life of over 100+ hours using drink only mode
  • Typical Charge time: 1.5-2 hours
  • BLE 5.2 connectivity to FluidLogic accessories
  • BLE 5.2 wireless low energy handlebar indicator/activator fits any handlebar with easy assembly (uses 1620-coin cell) (product allows multiple connected indicators/activators)
  • FOB provides wireless remote activation of drinking
  • Water boom kit for assembly into most bike helmets (open or closed-face)
  • Quick connect magnetic coupling for ease of use in connection to helmet
  • Pack size: 14”x 9”x 5”
  • Reservoir capacity: 50 fluid ounces/1.4L
  • Empty weight: 42oz/1.2Kg
  • Fully filled weight: 92oz/2.6Kg
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GPR50 FAQs

How much does the GPR50 weigh?

The GPR50 weighs approximately 2.5 pounds (1.13 kg) when empty. When the 50oz reservoir is full, the total weight is about 5.75 pounds (2.6 kg).

How do I know that it will integrate into my particular helmet?

The GPR50 is designed to work with most full-face and open-face helmets. The magnetic helmet connection and flexible boom straw require no permanent modification. Installation is fast and reversible, and the on-helmet mount fits the vast majority of popular helmet brands and models.

How long does it take to charge and how long does a full battery last?

A full charge takes about 2 hours using the included USB-C cable. Once fully charged, the battery powers approximately 10 complete dispense-and-refill cycles, which equals around 500oz of water delivered.

Can I use electrolytes or other sports drinks in it?

Using anything other than clean water can void the warranty, as sports drinks and additives may cause buildup or damage to the internal pump and tubing. For optimal performance and long-term reliability, we highly recommend sticking to water only.

What is the warranty? What’s protected? For how long?

The GPR50 comes with a 1-year limited warranty covering manufacturer defects in materials and workmanship. It does not cover misuse, modifications, or damage caused by using non-water fluids in the system.

How do I know the current battery level?

There are two ways to check battery level: Press the button near the LED indicator at the top of the pack, or view it in the FluidLogic mobile app.

How do I clean and store it?

We recommend occasionally flushing the system with clean water. For deeper cleaning, run a water-vinegar solution through the line and rinse thoroughly. Before storing, be sure to dry the reservoir completely, and store the pack in a cool, dry place with the bladder open to air out.

Does it keep my water cool or cold?

The GPR50 is not an insulated system, but the low-profile design and location against your back help keep water relatively cool during rides. For best results, fill with chilled water or add ice cubes.

Does it have any additional storage for other items?

Yes—the GPR50 includes a small external zip pocket for essentials like keys, snacks, or a phone. It also features external bungee straps that provide flexible storage for a light jacket or extra layers, making it easy to carry what you need without adding bulk.

4.9
Rated 4.9 out of 5 stars
Based on 21 reviews
100%would recommend this product
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21 reviews
  • GB
    Greg B.
    Verified Reviewer
    Reviewing
    GPR50 Hydration System
    I recommend this product
    Rated 5 out of 5 stars
    October 20, 2026
    BEST PURCHASE EVER

    I absolutely love this thing. Not having to reach and find a hose and or bite a bite valve is amazing. Simply mid ride, push the bluetooth button and BOOM!! WATER. It is that simple. I have found after a couple of practice rides and hare scramble races, that I prefer low doses and more frequent drinks. It is super easy. I did not notice that I was not drinking enough until I used this product. During and after a race, I felt more hydrated, better energy, etc because I was drinking more often and drinking the correct amounts. If you are skeptical, dont be, this thing is the real deal and it is beyond easy to use.

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  • PB
    Preston B.
    Verified Buyer
    Reviewing
    GPR50 Hydration System
    I recommend this product
    Rated 5 out of 5 stars
    May 26, 2026
    So easy to use

    It’s amazing! Lightweight and super handy to be able to leave my hands on the bars 100% of the time

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  • TM
    Tyler M.
    Verified Buyer
    Reviewing
    GPR50 Hydration System
    I recommend this product
    Rated 5 out of 5 stars
    May 19, 2026
    Super comfortable all race long

    Wore this for the first time and was super impressed. Great design and super comfortable to wear. Won’t do a long distance race without it. 10/10

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