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Montesa Cota 4RT Cushion Arm Plates

Featured Replies

Since I wasn't careful enough during dismantling, I am not sure whether Cushion arm plates are in right position or I have turned it upside down. It can't be determined from the photos in the Owners Manual..1981016760_IMG_50161.thumb.JPG.9bdd519fe6e1e5fdd1da912ea0efe7c9.JPG

You got it right; the lobe with the larger contact surface goes to the swingarm, smaller one bolts to the dog bone linkage, longest arm bolts to the shock.

  • Author

Tks mate, I can proceed with assembling now.

Just noticed a small something, your side stand is welded onto the swingarm, that's not stock because I always removed it with the 2 bolts in the swingarm, don't need side stands around here because we have trees and rocks everywhere.   😎

Is this a 260 swingarm?

I recently bought a 2018 300 4rt that has a cast aluminium kick stand that does not work very well.  It is sort self retracting.  The pin that locates the top part of the spring looks not positioned well to properly overcenter the pivot and stay in the down position.  The other day I saw a 260 rt with what looked like an OEM welded up steel tube kick stand that worked better as in not auto retract.  It looked like your picture.  Are they interchangeable?  So, If I could find one, could it be mounted to the 2018 300?  Both parts of my 300 kickstand are aluminium and I don't weld aluminium.  I can weld steel so if both parts of the 260 kickstand are steel, I could also bend and weld to suit.  Does anyone have one for sale?  I'm in the US.  

1 hour ago, mcman56 said:

Is this a 260 swingarm?

I recently bought a 2018 300 4rt that has a cast aluminium kick stand that does not work very well.  It is sort self retracting.  The pin that locates the top part of the spring looks not positioned well to properly overcenter the pivot and stay in the down position.  The other day I saw a 260 rt with what looked like an OEM welded up steel tube kick stand that worked better as in not auto retract.  It looked like your picture.  Are they interchangeable?  So, If I could find one, could it be mounted to the 2018 300?  Both parts of my 300 kickstand are aluminium and I don't weld aluminium.  I can weld steel so if both parts of the 260 kickstand are steel, I could also bend and weld to suit.  Does anyone have one for sale?  I'm in the US.  

Sure does look like Cota.

My riding buddy just picked up his new Beta Factory and the kickstand self retracts the same way, you can fix that quick with a hand file.

I had a collection of Montesa side stands from 2001 to 2017 and yes there were variations on the theme, they all were removed after the first time it cost me a 5, the stand with a foot pad welded on the end caught logs and would stop you dead.  lol I stored them with my MV Agusta F3 passenger pegs in the useless parts drawer.

 

Edited by lemur

My 2015 260 was fine with regards to the side stand.  But my 2022 301 was not.  It came with the self retracting stand -supposedly for safety reasons but doesn't work so well with a right side stand if you mount/dismount from the left.

 

Anyway, before even riding the bike, I removed the side stand bracket for modification.  As you can see, the spring perch is slightly behind the pivot...

Resize_20241207_081347_7675.thumb.jpg.011602c6e8afee86c978f98b1a506ec4.jpg

I hacksawed it off and re-welded* it forward of the pivot...

Resize_20241207_081348_8066.thumb.jpg.c183717e286cb1a6bf236bb2173a3166.jpg

Resize_20241207_081348_8398.thumb.jpg.a555086945cc275975efb10c2f72d763.jpg
Works fine now although the spring is stretched a bit more than it should be. It now stays extended until I kick it up...

Resize_20241207_081348_8735.thumb.jpg.1739399f1932b05e982c86ec99ec38fa.jpg

* The bracket is some sort of steel or possibly stainless steel.  I TIG welded it using stainless filler wire.

 

 

  • Author
On 12/4/2024 at 6:34 PM, lemur said:

Just noticed a small something, your side stand is welded onto the swingarm, that's not stock because I always removed it with the 2 bolts in the swingarm, don't need side stands around here because we have trees and rocks everywhere.   😎

Actually it is not. I think they just added some 'meat' to make it stronger to hold screws (photo). It is not bad idea to remove it, but sometimes I'm in the middle of big flat meadow, and need to pee😄 

IMG_5020[1].JPG

Flatlands dilemma 😎 if the ground is soft I just bury the rear wheel a little and stationary balance the bike to park it.

Your dog bone link looks like it has taken impacts, this happens because the OEM bash plate is poorly designed and fails to protect that part adequately.   If impact damage compromises the bearing seals, water infiltration will fail the bearings very quickly.  The dog bone part is symmetrical so you can swap it end for end and smash the other end for a while.   Best way I found to prevent the impact damage was to modify the bash plate so it extends back more and protects the linkage, similar to how the Mitani does on one of their aftermarket skid plates. 🤓  

Edited by lemur

22 hours ago, aussiechris said:

The bracket is some sort of steel or possibly stainless steel.  I TIG welded it using stainless filler wire.

Thanks for the pictures and details.

I looked at mine again and stand correctly.  The mount bracket looks the same as yours and is highly magnetic.  It is an odd color and I just assumed aluminium.  Since it is highly magnetic, could I assume it is just basic steel.  IIRC, 300 series stainless is only mildly magnetic.  400 series is also somethat magnetic but I don't remember how much.  I have no idea what they use for casting.  

I can mig weld some.  Do you think standard steel wire would work?  

1 hour ago, mcman56 said:

I can mig weld some.  Do you think standard steel wire would work?  

I would think so.  Obviously it would need painting afterwards.

Having said that, the original bracket looked like unpainted cast/forged stainless steel when new but it did go rusty later on.  Some stainless steels do rust.

Be warned, the spring will be a bear to get back on after moving that perch point 😠

  • Author
18 hours ago, lemur said:

Flatlands dilemma 😎 if the ground is soft I just bury the rear wheel a little and stationary balance the bike to park it.

Your dog bone link looks like it has taken impacts, this happens because the OEM bash plate is poorly designed and fails to protect that part adequately.   If impact damage compromises the bearing seals, water infiltration will fail the bearings very quickly.  The dog bone part is symmetrical so you can swap it end for end and smash the other end for a while.   Best way I found to prevent the impact damage was to modify the bash plate so it extends back more and protects the linkage, similar to how the Mitani does on one of their aftermarket skid plates. 🤓  

What to say..I just haven't seen this. It is nice to have someone so informative around, I'm gonna check that Mitani plate. 

  • 1 month later...

Not as pretty as yours but this should work.  Thanks for the details.  Do you have a recommendation for a home use hobby level TIG machine?

 

kick 1.JPG

kick 2.JPG

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