I am trying to ID this frame on one of my Looptail Geese. The only decal missing is the one that holds the secret.


It is a big tube frame with a 3 hole brake bridge and the S# on the bottom rectangle indicates its an 83.


At first I was sold to the fact that it was a Supergoose but I saw an 83 Pro-Class ad showing a choice of Black chrome or regular chrome so I guess it could be either.

Are there any other indicators as to what frame I have?

Thanks guys...

Any black residue anyplace?Check inside the BB shell headshell etc....It is probably a SUPERGOOSE.IMO.

I would think by looking at the sticker on the seat tube it's probably a supergoose.

A very long thread on rad recently determined the US supergoose had a thicker rear triangle than the UK model, as well the 3 hole brake bridge and larger diameter down tube

(the UK model appears to be the all tubes expert frame instead ..... )

i also have a pro class diameter tubing supergoose brought from the US.
only difference i can see between the two bikes is that it isn't thin walled tubing like the pro class


ps a looks pretty sweet build !!

californian not pro class,, no gusset for supergoose,pro class have a smaller down tubes,,its a californian

It isn't a Californian as I have one of those too. This one has bigger diameter top and downtubes as well as the rear triangle tubing being a lot thicker than the Cali plus the made in CA. vs. the Taiwan label.

There was a looptail Supergoose with no gusset. There are a few in the museum.

What color is the headtube sticker? If it's black & silver with BMX outlined in red, it could be a Pro Class. If the sticker has any yellow it is probably a Supergoose (if the sticker is original).

Not sure what gusset Forman is talking about-looptails didn't have gussets, regardless of model, and the Pro Class tubing was larger diameter, not smaller.

All Pro Class' had larger diameter, but thin wall tubing. If it is not thin wall, I would say it was a Supergoose, although I don't ever racall seeing a Supergoose with both 1 1/4" top and downtube tubing. Usually, if the Supergoose had any larger diameter tubing, it was just the top & rear triangle.

mongoose definately made
thick tubed supergooses

they identical in all repsects to the pro class
but a si said up there - they are not thin walled tubing

i have one such model imported from states
in the hope it was a mis badge pro class
and a lot of weighing and research proved it was in deed a supergoose.
i post some pics in two tics

heres my thick tube supergoose

part of a test from super bmx mag

KDW-are both your top & down tubes 1 1/4"?

OK, I have this frame and I think it's an Eric Rupe.
Possibly it's a Pro Class.
I need to double-check and measure the diameter of the tubes etc.

However, it only has one hole in the brake bridge so...

Waht I'm trying to say is, before I go to the expense of getting it repainted.... I need to confirm what it is.

By teh way, I have an original 'Pro Class' stem.
These are the stems that have Mongoose stamped on them, not 'Pro Class' and came on the original black chrome Pro Class.
How common are they?

You have a rupe Andy,my serial# is j4000508 funny that they were that close on the assembly line or they didnt make a bunch,not sure.

measure from the center of you're bottom bracket to the ground. 10 1/8 is pro class,11 3/8 is rupe and I'm not sure what the measurement is for a supergoose though. Perhaps someone with the build sheet for the supergoose can post what the measurments are.

Um, wouldn't the tire size as well as placement in the dropout make a difference in ride height?


Some of my bikes:

`83 Californian w/175's = 11 3/8"
`83 Expert w/175 rear/2.125 front = 11 1/2"
`86 Californian w/175 rear/2.2 front = 11 7/16"

Technically, all of these frames should be dimensoinally identical, so they should all have the same ride height.

Don't have a Pro Class or Supergoose together, but `83 spec sheet calls the Pro Class ride height 10 3/4".

I am out of town right now so I won't have a chance to measure mine until Saturday. The headtube decal does have the yellow outline and not red.

quote:

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KDW-are both your top & down tubes 1 1/4"?

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MCM

nope just the down tube is