Size Guide — Mercedes-AMG PETRONAS F1® Team Rallye Edition 750 & Smart eBike Helmet
Size Guide — Mercedes-AMG PETRONAS F1® Team Rallye Edition 750 & Smart eBike Helmet
🏁 Bike Size Guide
The Rallye Edition 750 is designed for peak comfort and control across a wide range of rider heights.
| Frame Size | Rider Height | Inseam (Leg Length) | Notes |
|---|---|---|---|
| Medium (48 cm) | 5’5” – 5’10” (165 – 178 cm) | 29” – 32” (74 – 81 cm) | Best for agile handling and all-terrain versatility |
| Large (52 cm) | 5’11” – 6’3” (180 – 191 cm) | 31” – 34” (79 – 86 cm) | Best for taller riders seeking maximum stability |
💡 Tip: If you are between sizes, choose the smaller frame for more responsive handling, or the larger frame for a roomier ride posture.
🪖 Smart eBike Helmet Size Guide
Our Bluetooth-enabled helmet offers a precision fit for safety and comfort. Measure your head circumference just above the eyebrows and ears.
| Helmet Size | Head Circumference | Fit Range |
|---|---|---|
| Small | 20.5” – 22” (52 – 56 cm) | Snug fit for smaller head sizes |
| Medium | 22” – 23.25” (56 – 59 cm) | Most common adult size |
| Large | 23.25” – 24.5” (59 – 62 cm) | For larger head sizes or riders who prefer a looser fit |
⚠️ Fit Check:
-
Helmet should sit level on your head, covering your forehead.
-
The chin strap should be snug but comfortable—you should only be able to fit one finger between strap and chin.
-
Shake your head gently—the helmet should not move independently.
📦 Included With Rallye Edition Purchase
-
Your correct frame size
-
Matching Smart eBike Helmet in your selected size
-
Optional helmet exchange within 14 days if size isn’t perfect
Need Help Choosing?
📞 Contact Our Support Team or 📧 Email Us with your height, inseam, and head measurement, and we’ll confirm the best fit before you order.