So we have decided to get DD a bike for Christmas - I'm thinking a 40cm one so she has a bit of grow room plus she is tall for her age so think this would suit her.

However we have been tossing up wether to get the twins a bike each or a trike each, they are 2 1/2. DD has a trike which one of the twins rides and is really good with the pedals etc, so I'm thinking of getting them bikes and helmets as I feel this would be better for them but DH thinks we should get them trikes.

What would you do?? If I got them bikes I would be getting the small 30cm ones - and they are tall for their age - but I think it would be a better use of money instead of getting trikes and then having to upgrade to bikes next year anyway.