i have for a while now excercised my girls on the scooter and now recently on a push bike aswell ( now ive got an antenna )... currently i use an X back harness for scooter what sort of harness is best for use on the bike .. i have looked at the fact that now the gang line is higher .. want to make sure i use the correct harness so i do not put undue pressure etc on my girls... all advice very much appreciated..

I'm not an expert on this or even a beginner, but I would think you could do a couple of things. Add length to the line to lessen the angle or add weight to it behind them (where the tugs meet the tow). Oh, and an 'H' harness might be better for the higher line setup. Hopefully someone with real knowledge will come along and help.

I take Koda bikejoring and I use an x-back harness with a gangline... I asked experts, as I had mine made to Koda's measurements, and they all said that the x-back harness was what I was looking for I hope this helps, as I'm not really an expert at all!

We use a multi-sport harness from Adanac Sleds and Equipment. The harness is designed more for bikeing, not what the X back or H back was designed for.
www.adanacsleds.com
They're $24.00, and built from your sibs mesurements, plenty of options with padding