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#PrimeBikes #Thunderflash #RocketDH #EnduroBike #DownhillBike #CarbonBikes #RawCarbon #MountainBiking #BikeTech #UDH #SRAMTransmission #BikeUpgrades #BikeRaceReady #AffordableProBikes #BikeEnthusiast
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Prime Bikes, a relatively small but experienced brand with two decades of UCI gravity racing expertise, has updated its Thunderflash enduro and Rocket downhill bikes for 2025. These carbon-framed, race-ready machines have been flying under the radar since their introduction in 2021, but the latest updates bring a mix of modern advancements and aesthetic upgrades that could make them stand out in the competitive enduro and downhill markets.
2025 Updates: What’s New?
The most significant functional update for the 2025 Prime Thunderflash is the addition of Universal Derailleur Hanger (UDH) compatibility. This future-proofs the bike for SRAM’s T-Type electronic drivetrains, such as the AXS Eagle Transmission, and hints at upcoming mechanical options. While this is a subtle change, it’s a crucial one for riders looking to upgrade or customize their drivetrain setup in the future.
For both the Thunderflash and Rocket, Prime has introduced a new raw carbon finish. This design choice not only showcases the structural beauty of the carbon fiber tubing but also shaves off a few grams by eliminating the need for paint. The raw carbon look is now the default finish for all 2025 models, replacing the unique splatter-paint designs of the previous year. If you’re a fan of the splatter aesthetic, you’ll need to snag a remaining 2024 model while they’re still available.
Thunderflash Enduro: A Versatile 29er
The Thunderflash is Prime’s enduro offering, designed for aggressive trail riding and enduro racing. The 2025 model builds on its lightweight carbon frame and adds UDH compatibility, making it more versatile for riders who want to experiment with the latest drivetrain technology.
Build Options & Pricing
For 2025, Prime is offering the Thunderflash exclusively with SRAM AXS Eagle Transmission drivetrains, which means electronic shifting is now standard. Complete builds start at $7,500 / €8,000 with a GX-level drivetrain or $8,500 / €9,000 for the higher-end XO version. Both options come with premium suspension, including RockShox Ultimate air or coil, Fox Factory coil, or Öhlins air.
Other standout components include Maven brakes, Industry Nine wheels, Renthal cockpits, Bike Yoke dropper posts, and Maxxis tires. These high-end parts ensure the Thunderflash is ready to tackle the most demanding trails right out of the box.
For those who prefer a custom build or want to keep costs down, Prime is offering the Thunderflash as a frameset for $4,100 / €4,100, which includes a RockShox Vivid Air Ultimate shock.
Rocket Downhill: A Purebred DH Machine
The Rocket is Prime’s downhill bike, designed for gravity-focused riding and racing. While it hasn’t received the same functional updates as the Thunderflash, it now sports the same raw carbon finish, giving it a sleek, modern look.
Build Options & Pricing
The Rocket’s build options remain largely unchanged, with a focus on premium suspension and drivetrain components. Riders can choose between RockShox Ultimate air or coil, Fox Factory coil, or Öhlins coil suspension systems. Drivetrains are still based on conventional hangers, with SRAM’s mechanical downhill-specific X0 DH and GX DH drivetrains available.
Complete builds start at €7,000, while the frameset is priced at €4,300. Like the Thunderflash, the Rocket comes equipped with high-performance components, ensuring it’s ready to handle the rigors of downhill racing.
Availability
The updated 2025 Prime Thunderflash and Rocket bikes are available to order now directly from Prime. Deliveries are expected to begin at the end of this month, with shipping continuing into April depending on the selected build and components.
Why Consider Prime Bikes?
Prime Bikes offers a compelling option for riders who want pro-level performance without the massive price tag of some larger brands. While the bikes aren’t exactly cheap, they pack a lot of value with their high-quality carbon frames, premium suspension, and top-tier components. The company’s small-scale operation also adds an element of exclusivity, making these bikes a great choice for riders looking to stand out from the crowd.
Key Takeaways
- UDH Compatibility: The Thunderflash now features UDH, making it compatible with SRAM’s T-Type electronic drivetrains and future-proofing it for upcoming mechanical options.
- Raw Carbon Finish: Both the Thunderflash and Rocket have a new raw carbon finish, showcasing their structural design and saving weight.
- Electronic-Only Drivetrains: The Thunderflash is now exclusively available with SRAM AXS Eagle Transmission drivetrains, emphasizing modern, high-performance shifting.
- Premium Suspension: Both bikes offer a range of suspension options from RockShox, Fox, and Öhlins, ensuring top-tier performance for enduro and downhill riding.
- Customizable Framesets: Prime offers frameset options for both the Thunderflash and Rocket, allowing riders to build their dream bike while potentially saving on costs.
Final Thoughts
With the 2025 updates, Prime Bikes continues to refine its Thunderflash and Rocket models, offering riders cutting-edge technology and premium performance. The addition of UDH compatibility and the raw carbon finish are particularly noteworthy, as they cater to both functional and aesthetic preferences. While the electronic-only drivetrains and premium suspension may push these bikes into the higher price range, they remain a solid choice for serious riders looking for a unique, high-performance machine. Whether you’re an enduro enthusiast or a downhill daredevil, Prime’s latest offerings are worth a closer look.
