Original workshop manual from SI Zweirad Service-GmbH for scooters with the engine type 139QMA / QMB 4 stroke 50ccm in German

We are not the author of this manual and accept no liability for incorrect descriptions or for damage caused by incorrect repairs. If you have problems with your scooter, please contact our mobile service.

Technical info

The article: Workshop manual

can also be found under: Workshop manual, repair manual, service manual , Rex workshop manual, Jonway workshop manual, AGM workshop manual

This article fits many models, among others for:

Rex RS 460 BOSTON 8 Rex RS 450 Otto Versand Rex RS 400 Otto Versand Rex RS 750 Jonway Milano 50 Kreidler MONZA 50 Race / Urban (Fin: WS1 or L8Y) Jonway Imola 50 Race / Urban Kreidler MONACO 50 Race / Urban Rex RS 900 QM50T 10A-A Rex RS 600 QM50QT-2 Rex Rexy 50 50 km / h Rex RS Classic 50 AGM GMX 450 One JSD50QT-13 Rex RS 500 QM50QT 6A-AQINGQI AGM GMX 550

The Rex brand is one of the best-selling in Germany. Constant quality controls on site at the manufacturer guarantee a high standard.

Free shipping In the case of spare parts for every additional item with the same shipping criteria that you receive from buy us.

You can easily buy our spare parts for your scooter or scooter online in our shop. Regardless of whether you bought your scooter in a hardware store or in a department store, you will find suitable components for all common China, Taiwan or Europe scooters, especially for the engines 50 cc, 125 cc, 250 ccm, 2-stroke, 4-stroke and for greater performance. Especially for the engine types 150QMG, 157QMJ, 158MJ, 139FMB, 152QMI, 157QMI, 164FML, 1E40QMB, 1E40QMA, 139QMB, 139QMA, JSD139QMB, GY6, 125-4T6M, 153FMI, 156FMI in short and long versions in Euro2, Euro3, Euro1 as well as the new Euro 4 injection engines you will find high quality spare parts. You are also welcome to inquire about spare parts by email. For orders over 100 euros, you can also use our financing or hire purchase service. When purchasing vehicles, we can also make you a leasing offer, which is particularly useful for companies that purchase company vehicles or provide their employees with a vehicle. We are happy to accept your request

It doesn't matter whether someone drives an electric scooter, motor scooter or 3-wheel scooter, he The question that often arises is whether you should replace a defective element or have it repaired. A new component, which can be replaced with comparatively no problems, is not only cheaper, but also offers considerably greater functional reliability than when the scooter is repaired. Often you cannot identify a hidden error yourself right away and a qualified specialist workshop has to find out where the bug is. In such a case, it would make more sense to order one of the ready-made kits that we have in our range for many different models via our website. .

The quality of our products need not fear competition on the world market. How is it that we can be so cheap? The answer: Because we already pay attention to economically sensible product quantities in purchasing. With us you get all available components for your two-wheeler not only in excellent quality, but also for a reasonable price.

Are you looking for a component for a Sundiro or Eppella scooter? Don't panic, we have them available.

If you want, you can get the original part for your scooter from us without question. Most customers, on the other hand, rely on our replicas due to the good prices and the OEM quality. Our components enable you, on the one hand, to carry out the repair of your scooter yourself or, on the other hand, to have it carried out in a specialist workshop. There is probably no better alternative, in conjunction with repairing your pedestal to save a lot of money.

Thanks to clear images you can easily compare your defective component with the available replacement so that you actually get the item you urgently need. In this case, it is relevant that your order matches the defective part not only visually, but also in terms of specifications and dimensions.

How you benefit from it:

Purchase without risk through "money back" guarantee

We buy your scooter

Our deliveries are mostly made at short notice

Absolute road safety of the two-wheeler, especially with braking systems

< li> ISO-certified precision manufacturing

Parts and accessories for around 250 brands and 8500 models in stock

All of our products are durable, inexpensive and usable

Also with Inexpensive replicas, you will always receive OEM quality from us

You only pay once for shipping when ordering multiple installation elements with the same shipping conditions

Pick-up and delivery service

Scooters, street buggies, fun vehicles and quads are best bought in a specialist shop like ours. Why would it be advantageous for you if you let us work for you? Because we have established ourselves in this business field for decades and you can therefore benefit from the experience we have gained. For our family-run business, the business of scooters is the entire purpose of life.

It doesn't necessarily make sense to buy your motorized two-wheeler from just any dealer. It is therefore important to take a close look at your supplier in advance. Our business practices are fully understandable for the buyer! Just drop by and find out more about us personally. You will then see the confirmation of our quality with your own eyes, so to speak.

If the distance to us is too far for you, you can also use the Trustedshops seal and the various Ebay reviews. Both our shop and our business practice are rated "very good" with the Trustedshops seal of approval, for example. We are also very well placed on Ebay with a rating factor of 99.9%. Do these results not clearly illustrate that our customers are in good hands with us?

But no matter how hard we try - we are not robots, but people who sometimes do something wrong. Don't be angry about it if something goes wrong, but give us the opportunity to make up for our mistake.

When will we be at your service? Daily from 8:00 a.m. to 6:00 p.m. and on Saturday from 8:00 a.m. to 1:00 p.m.

We do a lot to keep our customers satisfied are. Our company started building machines more than 50 years ago, while the two-wheeler business has now been successfully expanded for more than 25 years. In the meantime, we have mainly decided on vehicle accessories, replacement parts and the "must have" for increasing the performance of the most common scooters.

If you have a built-in part for your motorized two-wheeler you are sure to find what you are looking for on our website at Motorroller.de. Articles, suitable accessories and installation components for around 8500 models and 250 manufacturers are waiting for your order in our dispatch warehouse. E.g. we have been working with manufacturers such as Yamaha, Kreidler, Jonway or Adly for years. By and large, we have more than 500,000 products from different manufacturers in our spare parts range, which are stored on our high shelves in an area of over 1,000 m². Everything you need as a scooter rider can be found in the accessories area.

That starts with the rain sets, kidney belts and gloves, and extends to the top case, windshields and crash helmets. In our tuning area we keep for everyone sporty drivers as well as some selected articles. This includes cylinders, exhaust systems, pistons and other things.

Continuous quality testing is our passion. In other words, before a scooter is delivered or picked up by the customer, we finally put it through its paces. First and foremost, we unpack every vehicle upon arrival at our house and put it to a test run on our computer-controlled two-wheel test bench. A functional test is then carried out again on the delivered scooter after it has been delivered to the buyer. This de facto guarantees perfect operation of the vehicle.

Effective environmental protection is particularly important to us. On the one hand, our motorized two-wheelers all have a fuel-saving combustion engine. In order to protect the environment and to ensure proper waste disposal, we take the transport packaging with us, which is obtained when our vehicles are delivered.

Are you planning to buy a new scooter from us and are you looking for a new owner for your old mobile scooter? Do not worry! Let that be our problem by buying your used scooter.

If we could get the chance from you we also prove the quality of our services. We are not one of those cheap internet shops that offer their articles today and will be gone tomorrow. It has not escaped us that the basis for a promising business activity can only be laid on the basis of progressive innovations and new ideas. Convince yourself of our excellent service and visit us in our company in Lindenfels-Eulsbach.

Lindenfels is in the administrative district Darmstadt, 40 km northeast of Mannheim and around 60 km south of Frankfurt / Main. It is best to take the A6 from the north, while the A8 from the south. Optionally, it is also possible to take the train without question.