

Product Description
The Kink Williams is the flagship model in the Kink line and their only signature bike with Pro team rider Nathan Williams.
The Williams is a no compromises bike, that gets as close to Nathan’s personal ride as possible with a much friendlier price tag. Stacked with aftermarket parts and superior manufacturing and materials, the Williams is designed to be ridden at a high level.
This 2026 model now includes the Williams signature forks with an adjustable 20mm/25mm offset. The new Translucent Purple colorway features polished tubing, making this color really shine.
Note: Optional brakes come included.
NEED SOME HELP CHOOSING A BMX BIKE?
We have compiled a complete BMX buyers guide to help you through the process! Keep reading to find out more about your perfect BMX bike. Here at SourceBMX we are all riders, so we can offer advice that only 100% rider-owned BMX shops can - just ask.
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BMX BIKE SIZE GUIDE
BMX bikes are measured in two ways: the size of the wheel (20” is the standard BMX wheel size), and the length of the frame which is gauged by the top tube measurement. We have also simplified for you into XS, Small, Medium, etc.Here is a guide to what size you should be looking for - note that there is some overlap in sizes, as personal preference also comes into the equation!
Rider Height (in) | Rider Height (cm ) | Wheel Size (in) | Top Tube Length (in) |
---|---|---|---|
2FT - 3FT | 60 - 90cm | 12" | 11.5" - 13" |
2'8" - 3'4" | 80 - 100 cm | 14" | 2.8" - 15" |
3FT - 3'8" | 90 - 110cm | 16" | 14.5" - 17" |
3'6" - 4'6" | 105 - 135cm | 18" | 17" - 18.5" |
4'6" - 5'1" (XS) |
135 - 155cm | 20" | 18" - 20" |
4'10" - 5'4" | 147 - 162cm | 20" | 20" - 20.25" (XS - S) |
5'2"- 5'8" | 157 - 173cm | 20" | 20" - 20.5" (S - M) |
5'6" - 6FT | 165 - 185cm | 20" | 20.25" - 21" (M - L) |
6FT + | 180cm + | 20" | 20.75" + (L - XL) |