Description
| Part Number | G74099-100 |
|---|---|
| Mid-engine type | Brushless Internal Rotor |
| Weight | 3,400 g |
| Dimensions L/H/W | 213mm/128mm/98mm (Casing Width) 213mm/128mm/150mm (Axis width) |
| Nominal Voltage | 36 V |
| Continuous Rated Power | 250 W |
| Torque | 70 Nm |
| Maximum support | 320% |
| Support up to | 25 km/h |
| Walking support up to | 6 km/h |
| Light source | Headlamp 2,4 A/6 V = 14,4 W Rear lamp 0,1 A/6 V = 0,6 W |
| Protection against ingress (seal) | IP56 |
Please note the following important information:
Please contact us to discuss the software application required for your bike manufacturer (Specialized, Fantic, BMW, etc.)
All motors purchased from us have the option to be upgraded for enhanced resistance to water ingress and longevity. Please contact us for further details.
Description
Blind plug for lighting connector on Brose magnesium motors
Brose S T and S-Mag Crankshaft Pulley Bearing PLB20124, for Brose motor designation ‘S’, ‘T’ and S-Mag.
For Brose S T and S-Mag Crankshaft Needle Roller Bearing PLB20125. We are supplying the original bearing with an additional seal to help protect your motor from water ingress. The seal is fitted before the bearing with the lip facing outwards.
Brose S T and S-Mag Crankshaft Sprag Bearing PLB20127. This is the one way clutch bearing fitted to the crankshaft for freewheel.
Brose S T and S-Mag Drive Gear Sprag Bearing PLB20126. This is the sprag bearing fitted into the back of the large belt drive gear.
Brose S T and S-Mag Inner Crankshaft Bearing PLB20123 supplied by eBike Motor Centre based in Fordingbridge, Hampshire.
Brose left-hand crankshaft bearing for Brose S T and S-Mag Left-hand Crankshaft Bearing PLB20121.
PLEASE NOTE! This bearing is supplied with the same type of outer seal as fitted to an original bearing
Brose S T and S-Mag Righthand Crankshaft Bearing PLB20122, Brose right-hand crankshaft bearing.
PLEASE NOTE! This bearing is supplied with the same type of outer seal as fitted to an original bearing.
Crank arm puller for Bosch, Brose, Impulse, Yamaha. This puller will fit all models of all motors.
It fits ISIS drive cranks, square drive cranks and the Bosch Gen 3 Octalink. There is a button on the end and you just need to use it or not, depending on the type of crank you have.
This crankshaft will fit Brose C, T, TF, S & S-Mag 2.1 & 2.2.
The crankshaft bearing surface is a critical part of the motors overall reliability, motor noise and bearing life. The crankshaft has two important bearing surfaces. The needle roller bearing surface and the sprag clutch bearing surface. If either of these bearing surfaces become damaged or rusted and pitted, they will cause premature bearing failure, especially for the sprag clutch bearing. The sprag clutch bearing MUST have a smooth, clean surface or the bearing will fail.
The examples below show severe bearing surface damage.


This high quality laser cut gasket will fit Brose aluminium1.2, 1.2e, 1.3, C, S , T and TF motors

This high quality laser cut gasket will fit Brose S-Mag 2.1 & 2.2 and fits between the motor and the ECU.

This high quality laser cut gasket will fit Brose aluminium1.2, 1.2e, 1.3, C, S , T and TF motors

Brose spider removal tool.
This is a high quality coated steel press tool, designed remove the chainring spider safely, without damaging the internal motor parts. (Puller not included).
Download more information here:
2 sprag clutch bearings are used in every Brose motor. Sprag clutch bearings allow rotation of a shaft in one direction but not the other. These bearings require lubrication to work reliably, but also rely on friction when they are required to stop rotation.
Special grease MUST be used. If a high pressure, or low friction grease like standard bearing grease, Teflon or ceramic based greases etc., the sprags will slip while under extreme load, causing a high wear rate. This can also cause the bearing to slip and grip violently causing premature failure.
This is a deliberately small pot of sprag bearing grease but still more than enough for both bearings. This grease should be applied as a thin film to the outside of the bearing and to lubricate the inner bearing race, a thin film of grease (approx 1mm thick) should be applied to the shaft that the bearing is to be fitted onto.