Hi, I need to replace the spring on an N series pony cycle but I’m not sure if I need the small or medium. Any advice please? Thanks Scott
Thanks for your question.
Please kindly follow below picture to find the tracking number firstly.
You could know what series is your product and size from the tracking number.
Tracking number: ****N3042******
The product model number is N3042, N means the product is N series which you've knew this.
N3 means the product is small size, N4 means the product is medium size, so you can choose the spring accordingly.