Salut,
a TW-driver (he lives in Israel) from the US-TW200 forum had a very good idea for a new and better suspension. He installed a Yamaha R1/R6 suspension.
The big positive from this suspension: Complete adjustable!!!
And the R1 suspension does have a bigger stroke (TW -> 48mm; R1 -> 65mm).
I adapted this idea for my Cross TW and Supermotard TW.
At first, the comparetion between all rear suspensions:
-> org. suspension
length: 330mm
-> org. suspension with 35mm tailraiser (important for Cross TW)
length: 365mm (absolut max. for TW)
-> R1 (and R6) suspension
length: 300mm
![](http://www.tw-parts.com/macbig2k1/federbein-r1/vergleich-federbeine_thum.jpg)
To have a correct seat hight with the new suspension is a good tailraiser with a fitting length very important.
for same hight like org. suspension:
R1 + 25mm = 5mm shorter as org. suspension (325mm)
R1 + 30mm = same length like org. suspension (330mm)
R1 + 35mm = 5mm longer as org. suspension (335mm)
for high raised tail:
R1 + 55mm = 25mm longer as org. suspension (355mm)
R1 + 60mm = 30mm longer as org. suspension (360mm)
R1 + 65mm = 35mm longer as org. suspension (365mm)
![](http://www.tw-parts.com/macbig2k1/federbein-r1/vergleich-hoeherlegungen_thum.jpg)
You can see here the ground clearance from my Supermotard TW with the small (and low) 150/70-14.
![](http://www.tw-parts.com/macbig2k1/federbein-r1/montage-r1-1_thum.jpg)
Now the steps for the installation:
Step 1
- Mount the raiser - the top holes must fit correctly
- bore some sec. with a 10mm drill in the lower hole, to make a mark
![](http://www.tw-parts.com/macbig2k1/federbein-r1/montage-r1-3_thum.jpg)
Step 2
- bore a hole with a 4...6mm drill in the marked position
- bore this hole up to 10mm
![](http://www.tw-parts.com/macbig2k1/federbein-r1/montage-r1-4_thum.jpg)
Step 3
- remove the bushing/sleeve from the org. suspension and insert it in the new suspension
or
- make a new bushing/sleeve with this measurements:
outer diameter: 17mm
inner diameter: 12mm
length: 40mm
![](http://www.tw-parts.com/macbig2k1/federbein-r1/montage-r1-6_thum.jpg)
Step 4
- the installation
![](http://www.tw-parts.com/macbig2k1/federbein-r1/bike-cross-tw-r1-5_thum.jpg)
The result with the 55mm raiser; grund clearance +~5cm
![](http://www.tw-parts.com/macbig2k1/federbein-r1/montage-r1-8_thum.jpg)
Here is a pic to compare the org. suspension with the R1 suspension with 3 differend raisers (55, 60 and 65mm)
![](http://www.tw-parts.com/macbig2k1/federbein-r1/vergleich-hoeherlegungen-mase-r1_thum.jpg)
The raisers (25, 30 and 35mm) can be used too for the org. suspension
![](http://www.tw-parts.com/macbig2k1/federbein-r1/vergleich-hinterrad-hoehe_thum.jpg)
You will find more pictures from the installed supensions in the threads from my bikes
-> Supermotard TW (Link)-> Cross TW (Link)