Bunch Bikes The K9 4+ vs Bunch Bikes The Preschool 4+The K9 4+ vs The Preschool 4+
Both checked Sep 2026 against manufacturer pages
Key differences
What actually differs
Same 500W motor.
Weight
Bunch Bikes is 9 lb lighter
Bunch Bikes
168 lb
Bunch Bikes
177 lb
Verdict
Which one for you
- Easiest to lift or carryBunch Bikes The K9 4+9 lb lighter overall.
Full specs
Side by side
SpecBunch Bikes The K9 4+Bunch Bikes The Preschool 4+
Fit
Rider height
5′2″–6′6″
5′2″–6′6″
Seat height
29.5-39.5 in (measured from bottom of pedal stroke)
29.5-39.5 in (measured from bottom of pedal stroke)
Rider limit
250 lb
250 lb
Total load
600 lb
600 lb
Seats
2
6
Motor
Rated power
500W
500W
Torque
45 Nm
45 Nm
Battery
Capacity
614 Wh
614 Wh
Voltage and amp-hours
48V · 12.8Ah
48V · 12.8Ah
Range and speed
Claimed range
20-30 miles depending on load and terrain
20-30 miles depending on load and terrain
Top speed
20 mph
20 mph
E-bike class
Class 2 (not stated by brand)
Class 2 (not stated by brand)
Size and folding
Folds
No
No
Folded size
Doesn't fold
Doesn't fold
Weight
168 lbBetter
177 lb
Wheels
20 in front (x2), 24 in rear
20 in front (x2), 24 in rear
Brakes and drivetrain
Brakes
Tektro Auriga E-Twin+ E545/E540 hydraulic disc, 180 mm rotors
Tektro Auriga E-Twin+ E545/E540 hydraulic disc, 180 mm rotors
Parking brake
Yes
Yes
Gears
7-speed Shimano (Tourney derailleur, Altus shifter)
7-speed Shimano (Tourney derailleur, Altus shifter)
Comfort and safety
Suspension
None stated (single gas-spring steering damper only)
None stated (single gas-spring steering damper only)
Certifications
UL 2271 and UL 2849; frame, stability and braking tested to DIN 79010
UL 2271 and UL 2849; frame, stability and braking tested to DIN 79010
List price
Price
$6,599Better
$7,299
"Better" marks the stronger figure where one clearly exists. Range and battery claims are the brand's own. "~" means we calculated it. "—" means we haven't checked it yet. Sources and any conflicting figures are on each model page.