Osapian 55 MAX Slim
The maximizer in a shorter 66/76 cm shaft.
- Thrust
- 55lbs
- Voltage
- 12V
- Power
- 660W
Suggested retail price
1,750 PLN
Shaft length
Not sure which length? Help me choose →
01 / Overview
A shorter-shaft variant (66 cm or 76 cm) with a maximizer instead of a gear switch — 55 lbs of thrust, 660 W.
In place of a gear switch, the maximizer delivers smooth, stepless throttle control — sparing the battery and extending runtime up to 5x versus a classic switch, a real advantage for trolling.
The telescoping tiller (21–35 cm) tilts through 110° of travel: 20° up, 90° down for transport.
The universal transom bracket offers 10 positions, adjusts along the full shaft length, and fits transoms up to 68 mm thick.
02 / In the box & options
- ▸Maximizer — stepless throttle control
- ▸3-blade Ø24 cm prop with guard fin
- ▸Telescoping tiller, 110° tilt
- ▸Universal transom bracket (10 positions)
- ▸Two shaft lengths: 66 cm / 76 cm
04 / Motor construction

- 01
LED gauge
5-LED battery charge indicator on a 12 V scale.
- 02
Stepless speed control
Maximizer replaces the gear switch — up to 5x longer runtime per charge.
- 03
Tiller lock
Holds the tiller at working angle and folds it for transport.
- 04
Telescopic tiller
Extends 21–35 cm, tilts through 110°: 20° up, 90° down.
- 05
Motor depth adjustment
Depth collar — stepless adjustment along the full shaft length.
- 06
Transom bracket
10 working positions, fits transoms 26–68 mm thick.
- 07
Propeller
Blade profile matched to the thrust of the model.
3-blade Ø 24 cm
- 08
Aluminium shaft
Anodised aluminium — fresh and salt water ready.
66 cm / 76 cm, Ø28 mm
- 09
Fin
Shields the propeller from bottom contact and weeds.
- 10
Brushed motor
Sealed drive unit with quiet operation.
~50 dB
Shaft length vs submersion
| Shaft length | Effective submersion |
|---|---|
| 66 cm | 49 cm |
| 76 cm | 59 cm |
Effective submersion per manufacturer data: shaft length − 17 cm.
05 / Pairs well with

Haswing motor carry bag
Code: HW-B90
View accessory →
80A power switch
Code: 59928
View accessory →
Fuse holder
Code: 10AGU108
View accessory →
Propeller (Osapian 55 / Cayman 55 / Comax type)
Code: 24000225
View accessory →
Transom bracket
Code: 24000238
View accessory →
Forward/reverse speed switch
Code: 24000231
View accessory →06 / Gallery
07 / FAQ
Which battery fits the Osapian 55 MAX Slim?+
The recommended battery is Min. 100 Ah Gel, Li-ion, LiFePO4. For a precise runtime estimate at a given capacity, use the battery calculator.
Which fuse should I use?+
This motor draws up to ~55 A at full throttle, so the recommended fuse rating is 65 A (AGU-type or resettable) — in practice, round up to the nearest size available.
How do I choose the right shaft length for my boat?+
This model ships with a 66 cm / 76 cm, Ø28 mm shaft. For the general sizing rule (transom or gunwale height → shaft length) see the sizing table on this page — Haswing motors also offer depth adjustment along the full shaft length, so a small mismatch is rarely a dealbreaker.
Does the motor run in salt water?+
Yes — the entire Haswing range runs in both fresh and salt water. After a season in salt water, rinse the shaft and prop with fresh water.
Osapian 55 MAX Slim
1,750 PLN






