Measure #35 or #420 Chain - Put a wrench on it!
MINIBIKE / GOKART CHAIN SPOTTERS GUIDE
Chain Identification
SMC Clutch Sprockets - When to Discard a #35 Chain
Everything You Need To Know When Replacing Your Motorcycle’s Chain and Sprockets | The Shop Manual
Sprockets for electric motors with 10 teeth & for #35 chain
#35 Split Sprocket | Quick Change Sprockets
Motorcycle Chain Sizes Explained
Monstercraftsman Mini Bike Tensioner #40 Sprocket
How to Measure Roller Chain
How to identify your roller chain
#40 sized chain! Motorized Bicycle Forum Top Asked Question! What Do All The Sizes/Letters Mean?
Basic Mechanisms: Sprocket and Chain
How to Install a Roller Chain Master Link Clip
How to measure and choose sprockets?
Sprocket ratios - Part 2
Making a sprocket for bicycle chain the way Clickspring wouldn't
using a chain breaker for size 25-60 chain
Chain and Sprocket: Learn the basics of sprockets and chains
13 - Assembly, Sprocket Split Collars, 35 pitch chain