2025 Blocks Family Base

Design
Moto/Klunker/Riser Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake, Single-speed capable, Step-through
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category

Geometry

1
2
Stack
475mm
510mm
Reach
400mm
430mm
Stack to Reach Ratio
1.19:1
1.19:1
Seat Tube Length, C-T
480mm
520mm
Top Tube Length, Effective/Horizontal HT Top
520mm
570mm
Top Tube Slope
18deg
20deg
Head Tube Angle
74deg
74deg
Seat Tube Angle
73deg
73deg
Head Tube Length
280mm
300mm
Bottom Bracket Drop
-30mm
-30mm
Bottom Bracket Height
294mm
294mm
Chainstay Length
430mm
430mm
Chainstay Length Horizontal
429mm
429mm
Front-Center
574.7mm
614.7mm
Front-Center Horizontal
573.9mm
614mm
Wheelbase
1002.9mm
1042.9mm
Fork Offset/Rake
28mm
28mm
Fork Length (Axle-To-Crown)
320mm
Trail
46.6mm
mid/​neutral
46.6mm
mid/​neutral
Mechanical Trail
44.8mm
44.8mm
Wheel Flop
12.3mm
12.3mm
Tire to Pedal Spindle
140.8mm
170 mm cranks
180.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
124mm
170 mm cranks
124mm
170 mm cranks

Base Build

1
2
Wheel Size
20 in (406)
406 mm BSD
20 in (406)
406 mm BSD
Tire Width
2.4in
2.4in
Tire Width Max
2.8in
2.8in
Tire Outer Diameter
527.9mm
527.9mm
Bike Length with Tires
1530.8mm
1570.8mm

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Category Trend
Mini-velo/Folding
Source:instagram.com/blocks.abc