Motorbike + Bicycle + Generator Carrier, Retractable!




Here you can find my unique retractable motorbike carrier project with 38 photos and detailed explanations...

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Step 1: Old One!

When we bought our motorhome, it already equipped with a "carrier" on it.

Design of this carrier was really terrible:

- Due to straight main beams, it reduces departure angle of RV and crashes to ground even at small slopes; for example every ferry travel :(

- Lenghtens RV approximately 55cm, permanently

- Can carry only a motorbike (small one :) ) and no space for our bicycle

- Masks licence plate (it is not legal of course) and no extra driving lights

- No place for bike ramp and we had to carry it in cargo space!

- Main rail steel was too thin and flimsy

- Heavy for its size due to unnecessary thickness of stainless steel pipes

Of course removed it after our second trip and start to design much better one by myself; hooray! :))

Step 2: New Design :)

I called customer relations deparment of my motorhome company in Germany and learned that its chasis construction is designed around 150kg including carrier itself.

Planning to design a carrier which can capable to carry motorbike + bicycle + generator + ramp.

My motorbike is around 100kg, carrier itself calculated as (preliminary designs) 32kg...

Have enough capacity for bicycle (12kg) :))

Sometimes I'm using Honda EU 10i generator (12kg) to run 220V air conditioner while travelling.

Fully loaded, slightly exceeding approved capacity; will not tell to anybody ;)

RV schematic is not my own; it is here just to give an idea about calculation basic.

After CAD design, prepared main parts by plywood and check if they interfere with RV's body...

Step 3: Preparing / Finding Parts

Main arms made of 8.0mm thick steel, rail and ramp 4.0mm embossed aluminum sheet and generator rack and bicycle rail 3.0mm aluminum sheet.

All sheet parts laser cut and bended in local company.

Note that connection cut for ramp and mounting "lug" for bicycle extension slide...

Running lights are all led, made by Farba :)

Licence plate lights are Hella, chromed.

Also we need steel tubes for fixing mechanism and horizontal support connections.

All screws are stainless steel.

Step 4: Temporary Installation

Here you can see how it works:

We have two main "arms" fixed to motorhome chasis with two bolts each.

Triangular secondary arms are retractable and turns at pivot point on top of them.

These arms are holding loading ramp and extensible small arms to hold bicycle rail also.

Loading ramp fixing its special space by a wing nut only.

Behind of the main rail, there is a small aluminum plate to hold my Honda Eu 10i generator. It is fixing here by strap.

Bicycle rail "opens" by stainless steel hinges when in use. If you are carrying only a motorbike, extensions can stay inside and rail "closed".

When not in use, whole caririer retracts onto RV body and running light + licence plate holder turns to backside.

Perfect :)...

Step 5: Final Installation

Removed everything off and sent steel parts to electro galvanising.

Led lightings mounted and wired.

All parts are ready for final installation :)

Here you can see retracted position and fully loaded carrier together.

Looks very good and professional :))

Step 6: Testing and Finishing

Step by step loading photos here.

- Only generator,

- Generator and motorbike,

- Generator, motorbike and bicycle loaded and fixed.

Note that stainless steel "eyelets" to fix motorcycle by ratchet strap. I'm using two straps for extra security.

Bottom eyelet has 120mm lenght steel cylindiric rod to distribute load...

I'm using bicycle eccentiric clamps to fix light plate to desired position.

All project costs to me around 250 USD in materials.

Again, value of the success is: Priceless :))

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    13 Discussions


    5 years ago on Step 6

    Very nice, very neat and very professional looking. Well done on an absolutely top notch Instructable. This has given me some ideas for my ancient Land Rover military ambulance.

    3 replies

    Reply 5 years ago on Introduction

    Thanks very much! Most important thing is to find strong connection area on the chasis of your Land Rover...


    Reply 5 years ago on Introduction

    Absolutely agreed :) It shouldn't be too difficult on my Land Rover though. With it being an old 'series' model there have been plenty of military tow bar patterns. So, it's a case of using those and ensuring the weight is properly distributed over as wide an area as is possible. This rather than just have a small area of pressure which may look ok but could cause problems over time.


    5 years ago on Introduction

    Tebrikler on numara iş olmuş. Sitedeki bir sürü antin kuntin iş yanında gerçek bir çalışma nihayet. Buralarda bir Türk gördüğüme de sevindim. Hırsızlığa karşı bir de kilit bağlantı noktaları mı lazım acaba?

    1 reply

    Reply 5 years ago on Introduction

    Bağlantılar civatalı olduğundan kararlı bir hırsıza pek dayanıklı değil tabii ki böyle dışarıda durmak zorunda olan bir sistem.

    Ama yine de bisikleti kilitliyoruz :)