bluecat
Well-Known Member
I agree, the parkour around the EUROBIKE was small, but I’ve some experience on the ST2, so I believe, it’s enough for a short statement.
The most important thing is the electronic gear shifting system from Shimano. There is only one 52T chain ring, but the 11 gear cassette spreads the gears form 11T up to 40T, this is broader than before. The ST2 s has sufficient torque and power to deal with this. Shifting gears is very easy, the display always shows the current setting, you hear a beep and the shifting-motor. At the upper and lower end, you hear a different beep. With this, the only important function of this tiny device is to show the reaming charge of the shifting systems battery.
As expected, the Di2 works very fast an exact. It’s also possible to choose another gear as the bike stands still – shifting will take place a soon as the wheels are turning. For people who often shift gear / riding very sporty, the Shimano Di2 might be a real benefit.
The Supernova M99Pro is a real breakthrough in bicycle lighting. First time ever, you have a street legal light, which is sufficient for a 45km/h e-bike. The daytime running light is far better visible then the ST2 s – U. With both together, car drivers will no longer recognize you as slow bicycle (and refuse your ROW). You may toggling between daytime light and low beam by pressing the well-known light button – or after pressing this button longer between high- and low beam.
It wasn’t nighttime, so I can’t say anything about the brightness. But on my own Stromer, I have a 2200 Lumen MTB headlight. The difference between the Supernova E3 and my LD 4 is more than only great. As the M99Pro has a special road reflector, I expect less brightness around the riding direction, but more light in the distance.
The most important thing is the electronic gear shifting system from Shimano. There is only one 52T chain ring, but the 11 gear cassette spreads the gears form 11T up to 40T, this is broader than before. The ST2 s has sufficient torque and power to deal with this. Shifting gears is very easy, the display always shows the current setting, you hear a beep and the shifting-motor. At the upper and lower end, you hear a different beep. With this, the only important function of this tiny device is to show the reaming charge of the shifting systems battery.
As expected, the Di2 works very fast an exact. It’s also possible to choose another gear as the bike stands still – shifting will take place a soon as the wheels are turning. For people who often shift gear / riding very sporty, the Shimano Di2 might be a real benefit.
The Supernova M99Pro is a real breakthrough in bicycle lighting. First time ever, you have a street legal light, which is sufficient for a 45km/h e-bike. The daytime running light is far better visible then the ST2 s – U. With both together, car drivers will no longer recognize you as slow bicycle (and refuse your ROW). You may toggling between daytime light and low beam by pressing the well-known light button – or after pressing this button longer between high- and low beam.
It wasn’t nighttime, so I can’t say anything about the brightness. But on my own Stromer, I have a 2200 Lumen MTB headlight. The difference between the Supernova E3 and my LD 4 is more than only great. As the M99Pro has a special road reflector, I expect less brightness around the riding direction, but more light in the distance.
Last edited:
