The “Spec Sheet” - Whats everything mean?

Now you have an understanding of what sets the nomenclature of a certain size To help you understand this relationship of frame size and part’s sizing, let’s compare a 2020 DK Sprinter Mini and Expert complete bikes. The list of specs read like this:

Component	DK 2020 Sprinter Mini Bike	DK 2020 Sprinter Expert Bike
Frame	6061 aluminum with 3D dropouts	6061 aluminum with 3D dropouts
Top Tube	17.25"	19.5"
Fork	100% chromoly with tapered legs	100% chromoly with tapered legs
Handlebar	3” rise, alloy	6.5” rise, 100% chromoly
Grips	DUO Brand Mini	DK Tsuka with press-in bar plugs
Stem	Alloy front load, 30mm reach	Alloy front load, 30mm reach
Headset	Sealed integrated	Sealed integrated
Cranks	Forged alloy 3-piece, 140mm	Forged alloy 3-piece, 165mm
BB	Sealed European	Sealed European
Pedals	Mini alloy platform	DK Blender PC platform
Sprocket	37-tooth, alloy, 5-bolt chainring	39-tooth, alloy, 5-bolt chainring
Chain	KMC Z-610 3/32”	KMC Z-610 3/32”
Rims	Alloy, double wall, 36-hole	Alloy, double wall, 36-hole
Front Hub	DK alloy, fully sealed, 3/8” chromoly axle	DK alloy, fully sealed, 3/8” chromoly axle
Rear Hub	DK alloy, fully sealed, 3/8” chromoly axle, 14-tooth cassette	DK alloy, fully sealed, 3/8” chromoly axle, 15-tooth cassette
Seat	DK Mini 1-piece seat/post combo	DK Pro 1-piece seat/post combo
Seat Post	Integrated, 22.2mm, alloy	Integrated, 27.2mm, alloy
Seat Clamp	Alloy	Alloy
Tyres	20x1-1/8” Arisun XLR8	20x1-1/8” Arisun XLR8
Weight	7.3kg	8.4kg
Colour	Silver	Silver

You’ll almost always see the top-tube length listed at the top of specification sheets of bikes so that you can see straight away what you’re getting size wise, and also to compare one mini bike (or expert) with another brand’s bike.