Includes all taxes
For buyers in the EU region, if you purchase directly through this link, you may pay a certain amount of customs duties. If you want to purchase at a price including tax, please contact us for consultation on relevant matters.
US order: If the buyer chooses to use DHL for shipping, the buyer will need to pay taxes upon receipt. Please pay taxes in a timely manner to avoid the package being returned. If the package is returned due to the buyer's failure to pay taxes, the buyer will be responsible for the return shipping cost.
Important Installation Notice


>Integral Symmetric Crank
>4-Bolt 110BCD Configuration
>24mm Steel Spindle
>±1 Precise Power Data
>4 Essential Cycling Data:Power,Cadence,Pedal Balance,Pedal Smoothness
>Support Bluetooth, ANT+ Protocol
>Super Easy Calibration Operation
>240 Hours Long Battery Life
>IPX7 Waterproof in All Conditions

±1% Power Accuracy Capture Your Every Effort Accurately
The PES P515 power meter employs high-precision strain gauges and acceleration sensors. Combined with built-in intelligent temperature compensation algorithms, it can provide precise and reliable power data anytime and anywhere, even when the environment changes constantly.
Extensively tested in harsh environments with highly demanded standards, and with each strain gauge undergoing stress release, the product guarantees a ±1% power accuracy, never letting your effort in vain.

625g Light-weight and High-stiffness Design Unleash Your Power Hard
The PES crank adopts a triple hollow channel design. The extensive hollow spaces reduce weight greatly. The crank is integrally molded by applying precise CNC with deep-hole drilling techniques. While optimizing the sealing technique, the force structure is completely enhanced with a symmetric design. The weight is reduced greatly yet without affecting performance. After 100,000 times of harsh pedaling, it still performs excellently.
The P515 spider power meter is made of 7075 aircraft-grade aluminum. The selection of premium materials balances the weight while achieving great stiffness, making the power meter weighs 99g only.

330 Hours Long Battery Life
The P515 power meter applies a new circuit design to effectively improve power consumption efficiency and reduce power loss during cycling. After fully charged, it can support you for up to 330 hours of long-distance riding and training.
*The battery life is tested in Magene lab and may be affected by environment and temperature.

4 Essential Cycling Data Evaluate Your Cycling Ability Comprehensively

Complete Power Meter Crankset at One Go Deliver the Ultimate Cycling Experience
PES P515 power meter includes P515 spider power meter and PES20 crank. The considerate bundle eliminates your confusion on choosing compatible components. Therefore, we could provide consistent and reliable performance and you won’t worry about interference problems caused by a third-party component.

24mm Steel Spindle Versatile Compatibility with Your Frame
The PES crank features 24mm steel spindle, which is also popular spindle on the market. It’s compatible with standard road bike bottom brackets.
SHIMANO users can install it directly without replacing the bottom bracket.
Compatible with large diameter bottom bracket, including T47 and BB386
1. Driving side's external diameter of bottom bracket shell ≤57mm
2. Overall bottom bracket shell's width after installing bottom bracket 90.5-92mm


Support Bluetooth, ANT+ Protocol Record Data in Multiple Terminals
Compatible with various ANT+ and Bluetooth devices, can be connected to major brand bike computers such as Magene, Garmin and Bryton, etc. and training APPs such as STRAVA, Onelap, OnelapFit, Zwift, TrainingPeaks, TrainerRoad, etc. so that you can record data in multiple terminals for one workout.




Payment Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.
1. Accepted Payment Methods
We accept the following payment options:
Major Credit & Debit Cards (Visa, MasterCard, American Express)
Secure Online Payment Gateways (such as PayPal, Stripe, or other providers available at checkout)
Any additional payment methods displayed during checkout
All payments must be completed in full at the time of purchase.
2. Secure Transactions
All transactions are processed through encrypted and secure payment systems to protect your personal and financial information. We do not store your full payment details on our servers.
3. Currency
Prices are displayed in the currency indicated on the website. If you are purchasing from another country, your bank may apply currency conversion fees.
4. Order Confirmation
Once your payment has been successfully processed, you will receive an order confirmation email containing your purchase details.
5. Failed or Declined Payments
If your payment is declined, please verify your billing information or contact your bank. Orders will only be processed after successful payment confirmation.
6. Fraud Prevention
BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.
Delivery Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.
1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
2. Shipping Times
Estimated delivery times vary depending on your location:
Domestic Shipping: 3–7 business days
International Shipping: 7–15 business days
Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.
3. Shipping Costs
Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.
4. Tracking Information
Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.
5. Delivery Issues
If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.
6. Incorrect Shipping Information
Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.
Refund Policy – BILLIONS BIRDS
At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.
1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
2. Non-Refundable Items
The following items are non-refundable:
Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
3. Return Process
To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
Unless the item is defective or incorrect, customers are responsible for return shipping costs.
4. Refund Processing
Once we receive and inspect your returned item:
We will notify you of the approval or rejection of your refund.
If approved, the refund will be issued to your original payment method within 5–10 business days.
Please note that banks or payment providers may require additional time to process refunds.
5. Damaged or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.
6. Late or Missing Refunds
If you have not received your refund:
Check your bank account again.
Contact your credit card company or payment provider.
If the issue persists, don't hesitate to contact our support team for assistance.
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