2025 Blocks Family Base 2

Build

20 in (406) × 2.4 in

Insights

Very aggressive stack and reach vs trend of mini-velo/folding bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
510mm
Reach
430mm
Stack to Reach Ratio
1.19:1
Seat Tube Length, C-T
520mm
Top Tube Length, Effective/Horizontal HT Top
570mm
Top Tube Slope
20deg
Head Tube Angle
74deg
Seat Tube Angle
73deg
Head Tube Length
300mm
Bottom Bracket Drop
-30mm
Bottom Bracket Height
294mm
Chainstay Length
430mm
Chainstay Length Horizontal
429mm
Front-Center
614.7mm
Front-Center Horizontal
614mm
Wheelbase
1042.9mm
Fork Offset/Rake
28mm
Trail
46.6mm
mid/​neutral
Mechanical Trail
44.8mm
Wheel Flop
12.3mm
Tire to Pedal Spindle Distance
With 170 mm cranks
180.7mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
124mm

Base Build

Wheel Size
20 inch (406 BSD, BMX/Kids) (406mm BSD)
Tire Width
2.4in
Tire Outer Diameter
527.9mm
Bike Length with Tires
1570.8mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Moto/Klunker/Riser Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Features
Single-speed capable, Step-through
Source:instagram.com/blocks.abc