My design for a mobility scooter

Wibbles
Wibbles Community Member Posts: 3,686 Championing
pavementpilot_4_comparison (1).jpg generated_image.jpg

Here are the specs:

Spec

PP4 Standard

PP4 HD

Reason

Max user weight

120 kg / 265 lbs

160 kg / 353 lbs

Reinforced chassis + motor

Total weight

17.5 kg

22.8 kg

Thicker frame, bigger battery

Weight w/o battery

14.2 kg

18.1 kg

Still liftable in 2 parts

Motor

250W hub

350W mid-drive + gearbox

More torque for hills + weight

Battery

36V 7Ah, 252Wh

48V 10Ah, 480Wh, 4.7 kg

25-30 mile range

Wheels

8”/10” solid

10”/12” airless honeycomb

Better curb climbing, comfort

Frame

7000 Al monocoque

7000 Al + carbon reinforcement

Stiffness at higher loads

Seat

Textile sling 42cm

Textile sling 48cm, gel insert

Wider + pressure relief

Suspension

None

Front elastomer + seat post shock

Rough pavements, cobbles

Brakes

Regen + EM park

Regen + EM park + manual drum

Redundancy for weight

Folded size

68 x 45 x 32 cm

72 x 48 x 34 cm

Still fits Fiesta/Golf boot

Incline

1:6 / 9.5°

1:4 / 14°

350W + gearing

Here’s the cutaway of the Split-Fold hinge showing how the gas strut, magnet lock, and safety interlock work together. The red latch releases everything at once, and the strut handles the heavy lifting so folding takes ∼3 seconds.

split_fold_hinge_diagram.jpg

Comments