Hydra Diode
Forestal
Downhill
Hydra Diode is a carbon electric downhill mountain bike (2023), by Forestal, in the Hydra series. This bike is aimed at riders who want a more active, performance-leaning off-road feel, with a setup that gives you a sporty, active riding position, while being more at home in gravity-focused bike park riding. Its strongest points in the MatchBikes metrics are capable suspension support for rougher terrain, strong speed potential on smoother terrain, and all-round climbing capability rather than a narrow specialty. That said, relative to category specialists, the trade-off is a firmer ride feel than comfort-first options and a value score that depends more on priorities than pure price efficiency. Compare this bike on MatchBikes.com to similar downhill models.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Battery
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Cockpit
Seat
E-Bike Components
Geometry
| Measurement | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.48 mm | 1.38 mm | 1.32 mm | 1.29 mm |
| Bottom Bracket Height | 360 mm | 360 mm | 360 mm | 360 mm |
| Front Center | 777 mm | 807 mm | 843 mm | 870 mm |
| Rake | 46 mm | 46 mm | 46 mm | 46 mm |
| Trail | 139 mm | 139 mm | 140 mm | 140 mm |
| Stack | 622 mm | 622 mm | 635 mm | 649 mm |
| Reach | 421 mm | 452 mm | 482 mm | 502 mm |
| Top Tube Length | 574 mm | 606 mm | 642 mm | 663 mm |
| Seat Tube Angle | 76 ° | 76 ° | 76 ° | 76 ° |
| Seat Tube Length | 420 mm | 430 mm | 465 mm | 500 mm |
| Head Tube Angle | 63 ° | 63 ° | 63 ° | 63 ° |
| Head Tube Length | 95 mm | 95 mm | 110 mm | 125 mm |
| Chainstay Length | 439 mm | 439 mm | 449 mm | 449 mm |
| Wheelbase | 1215 mm | 1245 mm | 1291 mm | 1318 mm |
| Bottom Bracket Drop | 18 mm | 18 mm | 18 mm | 18 mm |
| Wheels | 29" | 29" | 29" | 29" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |




























































