We manufacture all kinds of swing arms. We are able to build special swing arms in house according to your wishes via sample, sketch or drawing. If you are interested, please leave us a message via e-mail or contact us via phone. We are happy to help you. You can see some of our special swing arms that we manufactured on the pictures here. TÜV information (for Germany): Here, a TÜV-Einzelabnahme is required. This is possible here at the workshop or at a competent TÜV center.

We can extend your original aluminum swing arm (no steel swing arms, no tube swing arms and no single swing arms). The swing arm will be extended by max. 135 mm. Please tell us by e-mail by which measure the swing arm should be extended! Price stays the same, no matter if 20 mm or 135 mm. The extension will be CNC-milled in our factory and welded in a jig, i.e. the tension remains the same (original wheel tensioner and wheel stub axle will therefore continue to be used). If due to any circumstances an extension is not possible or if any brackets have to be moved, we will of course inform you in advance because of possible additional costs. The swingarm can be returned after the extension in raw condition, but it is also possible to have it polished or coated. Please ask by e-mail, we will then give the price for the work specifically for your swing arm. Scope of delivery: your aluminum swing arm extended, measure after arrangement TÜV-documents (for Germany): Material specification (for TÜV-Einzelabnahme), TÜV-Einzelabnahme here at the workshop possible./li>

This CNC-machined rear swing arm type 1 for wide tire conversions is manufactured by us inhouse. We can supply the swing arm for all chain driven bikes. According to the selected tire width, we manufacture the swing arm exclusively for your bike – the installation works plug & play. Nothing has to be changed on the vehicle itself: Original swing arm out, RFB-swing arm in – done. The integrated, tensionable pinion shaft compensates the chain offset due to the wide tire. The rear wheel is centered to the vehicle at the end (no offset). We offer the swing arm with different surface options such as aluminum raw, high-gloss polished or black matte / glossy powdercoated. Measurements: We need the original rear swing arm, the rear wheel with brake system and sprocket carrier as well as the rear wheel axle with spacers. Simply send us the parts by mail to our address in Germany. We will then send the parts back to you. If we do not need some parts (because we have the measurements already), we will contact you shortly after your order. Information about the TÜV-entry in Germany: We deliver various documents like technical drawing, material specification, TÜV sample report of an identical vehicle (if available) for the TÜV-Einzelabnahme (individual acceptance). If there are problems with the TÜV-Einzelabnahme, we guarantee the TÜV-entry here at our workshop. Engraving wheel axle cover: As you can see on the pictures, we can engrave a little lettering on the wheel axle cover. Please contact us via mail or phone after your order and let us know what you want here. Scope of delivery: 3D-milled aluminum swing arm type 1, ready to install (swing arm is approx. 25-50 mm longer than original swing arm because of integrated pinion shaft) pre-assembled pinion shaft and wheel stub axle chain guard with "RF-Biketech" lettering cover pinion shaft if double shock absorber is selected: upper frame spacers for shock absorber (Note: You need to measure the length of the frame spacers after the installation of the swing arm. Give us the measurements via e-mail and we will send you the spacers!)

This CNC-machined rear swing arm type 2 for wide tire conversions is manufactured by us inhouse. We can supply the swing arm for all chain driven bikes. According to the selected tire width, we manufacture the swing arm exclusively for your bike – the installation works plug & play. Nothing has to be changed on the vehicle itself: Original swing arm out, RFB-swing arm in – done. The integrated, tensionable pinion shaft compensates the chain offset due to the wide tire. The rear wheel is centered to the vehicle at the end (no offset). We offer the swing arm with different surface options such as aluminum raw, high-gloss polished or black matte / glossy powdercoated. Measurements: We need the original rear swing arm, the rear wheel with brake system and sprocket carrier as well as the rear wheel axle with spacers. Simply send us the parts by mail to our address in Germany. We will then send the parts back to you. If we do not need some parts (because we have the measurements already), we will contact you shortly after your order. Information about the TÜV-entry in Germany: We deliver various documents like technical drawing, material specification, TÜV sample report of an identical vehicle (if available) for the TÜV-Einzelabnahme (individual acceptance). If there are problems with the TÜV-Einzelabnahme, we guarantee the TÜV-entry here at our workshop. Scope of delivery: 3D-milled aluminum swing arm type 2, ready to install (swing arm is approx. 25-50 mm longer than original swing arm because of integrated pinion shaft) pre-assembled pinion shaft and wheel stub axle chain guard with "RF-Biketech" lettering cover pinion shaft if double shock absorber is selected: upper frame spacers for shock absorber (Note: You need to measure the length of the frame spacers after the installation of the swing arm. Give us the measurements via e-mail and we will send you the spacers!)