As a two-wheeler producer, turn your customers into eternal fans.

Secure a competitive edge with Traction‑X’s patented ride comfort and safety advantage.


is a new and patent­ed sys­tem of trans­mis­sion and sus­pen­sion for scoot­ers, which is par­tic­u­lar­ly light and com­pact allow­ing an increase of the wheel diam­e­ter, thus yield­ing  ben­e­fi­cial effects on the dri­ving characteristics.

Illustration of a scooter with Traction-X, a revolutionary drive technology for excellent driving characteristics of scooters.

The design of a scoot­er with Traction‑X pow­er­train suspension

animation traction-x


A combination of secondary drive, drive wheel and wheel

As a pas­sion­ate motor­cy­clist, I am not averse to the com­fort of a scoot­er, but I do not want to accept the sig­nif­i­cant­ly poor­er rid­ing char­ac­ter­is­tics and the deficit in safe­ty com­pared toa motor­bike. As an engi­neer, I have there­fore devel­oped a new  sys­tem that com­bined pow­er trans­mis­sion and wheel sus­pen­sion and thus merges the advan­tages of the motor­cy­cle with the advan­tages of the scoot­er. That is Traction‑X!


The Demonstrator

In coop­er­a­tion with the Insti­tute of Auto­mo­tive Engi­neer­ing at the Cologne Uni­ver­si­ty of Applied Sci­ences, a scaled demon­stra­tor of Traction‑X has been cre­at­ed. This 3D-print­ed mod­el, ani­mat­ed by means of a micro-PC, is proof of the fea­si­bil­i­ty i.e., of the Traction‑X concept.

Details can be read at the blog­post Demon­stra­tor.

TRACTION‑X @ LaborX Hamburg

Last month, Traction‑X was a guest of start-up con­sul­tant Dr Jan Evers in Hamburg’s LaborX. His pod­cast “Ideen­couch” is a very spe­cial appre­ci­a­tion for all start-ups and bud­ding entre­pre­neurs. We received a trea­sure trove of tips and good expert advice in the con­ver­sa­tion. In addi­tion, we had a lot of fun!

Many thanks to Jan and his team at the LaborX!

Lis­ten for yourself!

The pod­cast episode

The pod­cast episode on Spotify


What is the technical status quo of two-wheeler technology?

Con­ven­tion­al motor­cy­cles often have a sec­ondary dri­ve by means of a link chain or toothed belt. The state-of-the-art in dri­ve tech­nol­o­gy for these motor­cy­cles is the func­tion­al and spa­tial sep­a­ra­tion of the dri­ve shaft and swing arm axis, in com­bi­na­tion with the cen­tral mount­ing of a con­ven­tion­al rear wheel. The dis­ad­van­tage of this design is the vari­abil­i­ty of the dis­tance between the chain sprock­et and the rear wheel sprock­et in the chain dri­ve or between the front and rear pul­ley in the belt dri­ve. The deflec­tion of the rear wheel when dri­ving over a bump leads to notice­able reper­cus­sions in the dri­ve train, i.e. on engine speed and torque.

Diagram showing the advantages, requirements and disadvantages of conventional two-wheel drive technology
Illustration Traction-X, the new development of the patented concept for drive and suspension.


Click here to access files at the Ger­man Patent and Trade­mark Office

The inven­tion on which Traction‑X is based is a device for trans­mit­ting the dri­ve torque from the engine of a wheeled vehi­cle to its dri­ve wheel and for shock-absorb­ing and resilient sus­pen­sion of the dri­ve wheel itself. An extreme­ly com­pact design is achieved, which fea­tures great advan­tages espe­cial­ly for motor scooters.

Drive-Train Swing-Wheel

Caption references
1 com­bined dri­ve and swing-wheel shaft
1a par­al­lel key
1b keyway
2 retain­ing ring and ring groove
3 grooved ball bear­ing (mov­able)
4 deep groove ball bear­ing (fixed)
5 cylin­der screw
6 left hous­ing cover
7 gear wheel with exter­nal teeth
8 hous­ing cov­er and right-hand side wheel hub
9 right-hand side wheel hub
10 nee­dle bear­ing (mov­able)
11 radi­al shaft seal­ing ring
12 deep groove ball bear­ing (fixed)
13 dri­ve sprock­et for chain drive
14 shaft nut with lock wash­er and shaft groove
15 cylin­der screw
16 right hous­ing cover
17 grooved ball bearing
18 radi­al seal­ing ring wheel cir­cum­fer­ence right
19 tire
20 wheel rim
21 radi­al seal­ing ring wheel cir­cum­fer­ence left
22 dri­ve gear with inter­nal toothing
23 shaft nut with lock wash­er and shaft groove
24 radi­al seal­ing ring
25 bolt­ed inter­face of the hub halves
26 screwed con­nec­tion with sus­pen­sion strut axle
27 riv­et­ed con­nec­tion of wheel rim to dri­ve gear 22
28 secur­ing screw for wheel bear­ing out­er ring
29 secur­ing wash­er for wheel bear­ing out­er ring
30 secur­ing screw for wheel bear­ing inner ring
31 secur­ing wash­er for wheel bear­ing inner ring
32 spring strut axis
33 spring strut with damper cartridge

Drive-Train Roller-Ring Swing-Wheel

Caption references
101 com­bined propul­sion and swing-wheel shaft
101a ring groove
101b ring groove
102 retain­ing ring and ring groove
103 deep groove ball bear­ing (float­ing) for chassis
104 deep groove ball bearing
105 cylin­der screw
106 left hous­ing cover
107 dri­ve gear with exter­nal teeth
108 hous­ing cov­er or right-hand side wheel hub
109 hous­ing cov­er or left-hand side wheel hub
110 track roller 1
111 nee­dle bear­ing (mov­able)
112 radi­al shaft seal­ing ring
113 deep groove ball bear­ing (fixed)
114 chain dri­ve sprocket
115 shaft nut with lock wash­er and shaft groove
116 cylin­der screw
117 right-hand side hous­ing cover
118 secur­ing ring for track roller 1
119 radi­al shaft seal­ing ring wheel cir­cum­fer­ence left
120 tire
121 wheel rim
122 radi­al shaft seal­ing ring wheel cir­cum­fer­ence right
123 dri­ve gear with inter­nal toothing
124 shaft nut with lock wash­er and shaft groove
125 radi­al shaft seal­ing ring
126 screwed con­nec­tion of two wheel rim halves
127 screwed con­nec­tion with spring strut axle and track roller 2 housing
128 riv­et­ed con­nec­tion of wheel rim to dri­ve gear 123
129 track roller 2
130 secur­ing ring for track roller 2
131 sus­pen­sion strut axle
132 screwed con­nec­tion for track roller 3 housing
133 track roller 3
134 secur­ing ring for track roller 3
135 sus­pen­sion strut with damper cartridge


A compact secondary drive unit for a scooter

Traction‑X is a new and patent­ed vehi­cle dri­ve con­cept that enables small unsprung mass­es, extreme­ly effi­cient use of space and large wheel diam­e­ters, which is par­tic­u­lar­ly advan­ta­geous for scooters.

Verbesserungen durch Traction-X, einer revolutionären Antriebstechnologie für exzellente Fahreigenschaften von Motorroller.