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Belt Tensioner
- Thread starter jimz49
- Start date
IGETAROUND
Active member
What Gene said; I want one just have been too cheap to go there.
Al
Al
Freddy
Active member
I fitted a Rosta tension when I first got my GS. It has a car idler pulley attached to the arm. It's mounted to a bracket I made which is clamped by 2 bolts & plates to the swing arm. It been there for nearly 9 years. I'll be replacing the pulley at next tyre change. The arm is rubber mounted within the square section of the mounting Rosta lug.
https://www.rostaaustralia.com.au/products/tensioning-technology/tensioner-devices/details.php?id=71
https://www.rostaaustralia.com.au/products/tensioning-technology/tensioner-devices/details.php?id=71
Warlock
New member
I fitted a Rosta tension when I first got my GS. It has a car idler pulley attached to the arm. It's mounted to a bracket I made which is clamped by 2 bolts & plates to the swing arm. It been there for nearly 9 years. I'll be replacing the pulley at next tyre change. The arm is rubber mounted within the square section of the mounting Rosta lug.
https://www.rostaaustralia.com.au/products/tensioning-technology/tensioner-devices/details.php?id=71
Which model rosta and do you have some better pictures?
thanks, David
Freddy
Active member
Type SE18 as shown in the link. I'll endeavour to do better pix soon - away from trike at present.
It functions not as a tensioner as such but as a 'harmonic vibration damper' for the belt. When the trike is loaded 2-up with luggage there is only very slight tension on the belt, which is enough to prevent the belt vibes which annoy us all. With the bike parked there is more tension on the belt as the suspension is unloaded. It therefore requires a third person to make the adjustment while the trike is fully loaded.
It functions not as a tensioner as such but as a 'harmonic vibration damper' for the belt. When the trike is loaded 2-up with luggage there is only very slight tension on the belt, which is enough to prevent the belt vibes which annoy us all. With the bike parked there is more tension on the belt as the suspension is unloaded. It therefore requires a third person to make the adjustment while the trike is fully loaded.
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Warlock
New member
I have built my own also. Used a different type set up. Here is the one I built.
http://www.spyderlovers.com/forums/...IY-belt-tenioner-for-08-thru-10-RS-GS-Spyders
I might one day look into the Rosta tensioner when mine goes bad. So far it has held up great. I have ordered more wheels and bearing for replacement, but still running the same wheel at present.
David
Freddy, the brackets you fabricated to clamp around the frame appear to be very thick. Did you determine the thickness was necessary, or was it a matter of what was available at the time? I just bought a rosta tensioner from ebay, will be looking for other materials to fab my own tensioner following your design.
Warlock
New member
Which tensioner did you get? I was looking at the SE15. I'm always looking to improve or make it simple . Keep me posted on how you come out and what materials you use. I used a roller skate wheel with double bearing for my tensioner and if I go the SE tensioner I will probably use the same type wheel.
David
I bought the SE15. I was looking at some of the automotive idler pulleys, thought they might be a good fit because they're made for long-term high revolution use. The prices are very reasonable too. Just have to decide how I want to fab my frame clamp. freddy's design looks straight forward requiring little to no special tools to make. Also looking at this type as an alternative.
Attachments
Warlock
New member
My buddy has this style on his spyder. I think the SE15 is the way to go. If I had known about this piece I would have went this way instead of the way I went. His way is way cheaper and very efficient. I think I had around $175.00 in my set up. The risers and the low and brow piece was that cost. I found a place to get the SE 15 for around $35 , but haven't checked the shipping at that cost.
David
Warlock
New member
If I was looking at the SE 18 set at 10 degrees would put around 16 lbs of pressure using the standard hole and the SE 15 would apply around 5 lbs. A lot of difference in weight applied. Of course you could set the SE 15 to around 20 degrees and get around 15 lbs of pressure on the belt. So I feel either one will work. Thanks for posting the info on it.
David
Freddy
Active member
The tension applied depends on the load on the trike and the adjustment of the tensioner with that particular load. The greater the load, the less deflection of the belt. As I mentioned, I have mine adjusted to provide slight belt deflection with the trike fully loaded. This eliminates the belt vibe. I have not measured the force applied by the tensioner in that circumstance as I wasn't concerned.
:cheers:
:cheers:
Warlock
New member
Agree. If I go this route will probably like yourself play with the setting. Mine is spring loaded and really hard to tell unless I put a scale on it.
David
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