Difficult to peddle Apollo mountain bike
Hi, hope you can help. My misses has an Apollo childs mountain bike (she is only 5' 1") with 24" rims. She has been complaining its difficult to ride and maintain any speed when we're out. We swapped for a while and no matter what gear you select it feels like there is some sort of resistence there. The bike has an aluminium frame and is V light even with front suspension. When the bike is stationary and you crank the pedal by hand it feels normal, weird!
So I guess my questions are
1, is this normal for apollo bikes?
2, can it be fixed?
3, should we scrap it and get something else?
Would really like to get it fixed for her as it was a B'day pressie and has sentimental attachment for her.