So I stopped by my local store to look at the difference in the radian and frontier. I mentioned to the store clerk that my dd would only have 8 more lbs to rearface in the radian. She told me no only to 2 years. I told her no, you rf to the weight limit. The clerk said that their Britax rep just came to train them all and that you only rf to 2 yrs because there would be no room for their legs. She said the rep sad that their legs would be injured. Sooo after about 5 - 10 mins the clerk comes back and says that she just phoned the rep and they told her that they just told them all 2 yrs because everyone wants to turn their child at 1 yr. Boy! What wrong information.