The other way is to find the SKU (part number) in your model's manual. Most RC cars even come with an exploded view
which will make locating the correct part number easy.
Method 3 (for aftermarket parts)
Besides reading the products title for your model the only other way (unless you can tell purely from the image) is
by measuring parts. This is sometimes impossible for some parts (like suspension arms and hubs) but can be very
easy for parts like:
Screws
Wheels
Pinion gears
Nuts
Bearings
Method 4
If you've tried all methods above and you're still scratching your head, then it might be time to
contact the experts. If you do, please be ready with all the
information you already know like SKU, brand, model and if you don't know any of them, make sure you send a picture
of the part you need and the car you have.
How do I know the size?
Various sizes & specs are listed under the specifications tab on the product's page.
If the specific size or measurement you're looking for isn't there, please contact us.