Ok I am about to buy a Rupes and I really need to know for sure ..

[The Guz]

It is not recommended to use the 5" backing plate on the 21 because the balance is thrown off.

21 uses a 6" backing plate and the 7" Rupes pads.

15 uses a 5" backing plate and the 6" Rupes pads.

If you really want to use this one

Rupes LHR 15ES 5 Inch Backing Plate

The easiest solution is to just get the 15 since you already ordered all those 6" pads. I have not had any issues with mine stalling other than super curved areas. Even then a slight adjustment and I can get it to spin. The washer mod is always another option.

[rodneypierce]

your 15 what? Rupes .. Griots?

Rupes Mark II, sorry.

[RMarkJr]

It is not recommended to use the 5" backing plate on the 21 because the balance is thrown off.

21 uses a 6" backing plate and the 7" Rupes pads.

15 uses a 5" backing plate and the 6" Rupes pads.

If you really want to use this one

Rupes LHR 15ES 5 Inch Backing Plate

The easiest solution is to just get the 15 since you already ordered all those 6" pads. I have not had any issues with mine stalling other than super curved areas. Even then a slight adjustment and I can get it to spin. The washer mod is always another option.

what do you think about the griots boss 21? does it stall out easier than the rupes mark II 21? I see they dont have any issue with 5 inch backing plates.

Also I hear the mark II 15 stalls out way easier than the 21 does.

[RMarkJr]

Rupes Mark II, sorry.

ah ok . I thought so .. wasnt sure .. thanks

[The Guz]

what do you think about the griots boss 21? does it stall out easier than the rupes mark II 21? I see they dont have any issue with 5 inch backing plates.

Also I hear the mark II 15 stalls out way easier than the 21 does.

Don't know. Don't own a boss.

If you want a machine that does not stall look into the flex.

[dlc95]

Who's Mike Rupert? Lol



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Lol!!

Auto correct refuses to learn RUPES for some reason.... Time to head to YT for a tutorial on programming words into auto correct...

[expdetailing]

I don't really know what all the fuss is about changing to a 5-inch backing plate because I did it to my 21 Bigfoot and noticed no changes in vibration.

[Ceerokz]

Stalling? How? Too much pressure? Concave areas? It's all about technique. Instead of doing the traditional cross hatching move the machine at an angle...scaling

[Eldorado2k]

Stalling? How? It's all about technique.

I agree for the most part... The bottom line is, as long as you don't completely suck at using the polisher, you shouldn't have a problem with it stalling. If you suck, it stalls, on the other side of the spectrum, take a look at that pic of Mike Phillips polishing around the headlight on that showcar using a Rupes 21...

I don't have a problem with my G21 stalling and I don't even have a washer installed. But if you think you're going to just polish a small fender with a body line like this giving your 7" pad no room to get into you're wrong.



That's why you've got your small 8mm polisher on deck with a 3" pad. Now quit worrying about whether or not these polishers stall.


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[RMarkJr]

I agree for the most part... The bottom line is, as long as you don't completely suck at using the polisher, you shouldn't have a problem with it stalling. If you suck, it stalls, on the other side of the spectrum, take a look at that pic of Mike Phillips polishing around the headlight on that showcar using a Rupes 21...

I don't have a problem with my G21 stalling and I don't even have a washer installed. But if you think you're going to just polish a small fender with a body line like this giving your 7" pad no room to get into you're wrong.



That's why you've got your small 8mm polisher on deck with a 3" pad. Now quit worrying about whether or not these polishers stall.


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lol ya I'm done.... sooo I ended up canceling that order of the rupes .. pads ..polishes .. everything ..

But I ordered the Boss 21 .. with the 5 inch backing plate. a set of the 6.6 pads and a set of the 5.5 pads .. 5.5 interface pad and 6.5 interface pad for it as well. Almost everything I saw people actually like the Boss 21 more than the rupes. A lot say its just as smooth maybe smoother. Although a touch heavier and louder than the rupes, but I dont car much about that. Plus the lifetime warranty on the Boss 21. The Boss 21 has a 900 watt motor and the rupes has a 500. So hopefully it will be close. I think that this is going work out real well