Rocky Mountain e-bike are well known for their high quality of built and their extremely powerful engines which make them one of the best e-bikes ever. The first Rocky Mountain engine was developed in 2009 but only in 2012 with the release of the 2nd generation engine (Dyname 2.0) the first engine was mounted on an ebike, in this case it was mounted on an urban ebike. The first Altitude Powerplay, which is the 3rd generation of the Dyname engine was first released in 2017. in 2019, three more engines were added to the Dyname family - Altitude Powerplay, Instinct Powerplay, and Growler Powerplay.
In the late 2021, Rocky Mountain announced the release of the 4th generation of the Dyname engine (Dyname 4.0). The new drive system delivers the same torque as its predecessor (108 Nm) and it is 18.5% lighter. But there is more to add to this class-leading engine since the Dyname 4.0 drive unit has now a torque sensor that reads the tension applied to the chain allowing the engine to gradually reach maximum power without unwanted lag time. In addition to this, a new torque curve has been developed which allows the engine to reach maximum power at lower rpm (85 rpm).
There aren’t many tuning for the Rocky Mountain however we have in store the best tuning available on the market to suit these powerful engines.The SpeedFun is a very small tuning device that allows to exploit the full potential of these powerful engines allowing for speed up to 50 km/h. The Planet 3 is a mechanical tuning which employs a planetary mechanical gearing system to triple the speed limitation of the engine. This tuning is installed on the rear hub.
COMPATIBILITY: the SpeedFun Evo Dyname 4.0 is only compatible with Dyname 4.0 engines
SpeedFun Evo for Rocky Mountain Dyname 4.0 Speedometer accuracy is retained up to16 kmh and displayed halved after that.
SpeedFun Evo for Rocky Mountain The travelling speed is displayed halved
Planet3 Rocky Mountain The planetary gearing is installed on the hub and it is compatible with all SRAM MTH746 HUBS - Formula DHT-148S rebranded as SRAM-MTH746
Planet3 Rocky Mountain The planetary gearing is installed on the hub and it is compatible with the DT SWISS HUB - Any hub with a simple 19 mm diameter end cap profile (Roval, DT Swiss, Syntace, Stan's NEO)
If you are still unsure which tuning is compatible with your engine just send us a message via our website chat box. We are here to help you out!
