Thanks for the suggestion. My C1 was set to 4.  I changed setting to 3 with no improvement and making the Speedo erratic at low speed. I changed the setting to 2 resulted in no pedal assist, still with erratic speedo. Seems these changes were making things worse so I changed C1 to 5. This is much more responsive with pedal assist engaging almost immediately. Just posting this to say thank you Altema for suggesting where to look, and it may help others. Tony.

Quote from: Altema on February 26, 2021, 08:12:28 AM

Quote from: Tony on February 17, 2021, 04:51:23 AM
JTK77 that's interesting, keep us updated on this.  I've just been out with my 5 year old grandson one the back and accidentally popped a wheelie with throttle only when pulling away . Getting full use of the throttle is something we didn't have on the euro model.  I can't wait to fit the full 750 motor from BGB  now. 😀

If the accidental wheelies become a concern, you can adjust the C5 parameters in the display settings. The default setting is 10, which is immediate full power. Settings 9 through 3 reduce the maximum power output, but settings 2, 1, and 0 keep full power, but slowly apply it so you don't get a lurch. 0 is the softest setting. We have a 9 year old, and I installed a backrest to keep from launching her off the seat!

Well done Altema, you were spot on with the C5 setting.  00 is the softest setting for the throttle to start.it's much more manageable.  I can test ride it from there. Thank you.
Any more thoughts on the delayed pedal pedal assist ?   Tony.

Hi, I have P4 at 0. And C4 at 0.   Tony.

Hi Altema, thanks for the suggestions in C5 I will look into it. I do find the throttle a bit sudden coming on and need to be cautious when manoeuvring. But it's great to have the extra power when you need it. It is that sudden lurch whilst trying to creep foreword.
  Also I find the pedal assist comes in later than the std Rad controller. The assist doesn't come in until I get to about 5 mph. Is there an adjustment for this ?   So far loving the extra power but it's not as smooth/refined as the std Rad controller. I do already have a back rest for the boy. The mini is quite rear heavy with the motor, battery, seated position and small passenger but I am really enjoying this bike. Tony.

JTK77 that's interesting, keep us updated on this.  I've just been out with my 5 year old grandson one the back and accidentally popped a wheelie with throttle only when pulling away . Getting full use of the throttle is something we didn't have on the euro model.  I can't wait to fit the full 750 motor from BGB  now. 😀

Good for you, Gareth recently got a delivery of these. My short lead up to the controller was on a Radmini 4. It may not be short for your model bike.

I went ahead and bought the controller from Gareth at Big Game. Very helpful and he programmes the controlled if you want. Turns out we live near each other so I went to pick it up. This is a major improvement for the euro 250 bike, it really moves now. As Altema reports in another post, the cable to the front display is a bit short so you have to route it up the front of the controller. Gareth is very easy to deal with and always replies to messages. Well worth doing. You won't need 1st gear and pas 5 again unless you are going vertical.

Paid £70 in the U. K.

Yes, I've just fitted that seat post and it does move your seat back.

Good information, thank you. 

I have the 35 amp Controller on order so I understand that should be a good improvement for the euro 250. I was thinking of adding the 750 motor as I would like some extra power for hills especially carrying some cargo. Top speed not really necessary.

You think the proper 750 watt motor would be a noticable upgrade over the euro 250 model though ?
Maybe the euro model is a restricted 350/500 motor.

I know nothing about this type of thing, but can the limiter be removed/disabled from the motor ?  Tony

Good report, thank you. I've been following your upgrades. Very informative. 

I have the new Rad road tires which are very quiet . But pretty useless on wet or anything else. Tony.