Hobbit- upgraded from stock notched variator to derbi 6 roller now not fully variating

I need some help please. I have a Hobbit with DR kit and Proma exhaust. Stock belt. I had the stock notched variator with 27grams of weights total and it variated fully. I just upgraded to a derbi 6 roller with 26.4grams weight total and I am not reaching full variation. The belt looks a lot tighter with the derbi variator. Can the belt be causing this issue or the .6gram weight difference?

Re: Hobbit- upgraded from stock notched variator to derbi 6 roller now not fully variating

The back wheel is pushed all the way forward and the belt is still tight.

Re: Hobbit- upgraded from stock notched variator to derbi 6 roller now not fully variating

Stock belt? With my wheel forward it's so loose the bike will not spin to start. That is with a tjt.

Re: Hobbit- upgraded from stock notched variator to derbi 6 roller now not fully variating

Yes stock Mitsu____ belt. Something is wrong. The belt is tight

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