Bathmate Sizes Guide

As there seems to be a lot of misconceptions and guessing around the size of the Bathmate models I’m going to calculate the numbers based off the stats I’ve found on their site earlier. I’m going to post the maximum possible and recommended stats for each size.

Edit: numbers are mistaken; see the correct numbers here
Dude151 - Bathmate Sizes Guide

You need to have some space to allow for expansion!

Hercules / Hydromax X30

Maximum Length 18.00 Cm / 7.080 Inches

Recommended Length less than 16.00 Cm / 6.299 Inches

Maximum Girth 14.45 Cm / 5.689 Inches

Recommended Girth less than 12.45 Cm / 4.902 Inches

Hydromax X40

Maximum Length 21.50 Cm / 8.455 Inches

Recommended Length less than 19.50 Cm / 7.677 Inches

Maximum Girth 17.59 Cm / 6.925 Inches

Recommended Girth less than 15.59 Cm / 6.138 Inches

Goliath

Maximum Length 25.00 Cm / 9.843 Inches

Recommended Length less than 23.00 Cm / 9.055 Inches

Maximum Girth 20.73 Cm / 8.161 Inches

Recommended Girth less than 18.73 Cm / 7.374 Inches

Source for calculations: Image attached

I have a Hercules and even at 7 3/4” BPEL I still have 1-1.5” of head room left in the tube even at full pressure.

Maybe not that much but taking a closer look at the sticker placement I think the maximum they report is not in fact the absolute maximum. I don’t have the other models so I can’t confirm how much of a difference they have.

Edit: It really looks like the meters end a lot earlier on the other two models, I’m going to take a closer look later.

Well it seems that the numbers are a little off and the maximum you can get in is a little more when it comes to length, I’d appreciate if a moderator could replace the original values with these.

Hercules / Hydromax X30

Maximum Length 20.32 Cm / 8.000 Inches

Recommended Length less than 17.78 Cm / 7.000 Inches

Maximum Girth 14.45 Cm / 5.689 Inches

Recommended Girth less than 12.45 Cm / 4.902 Inches

—-

Hydromax X40

Maximum Length 24.76 Cm / 9.750 Inches

Recommended Length less than 22.22 Cm / 8.750 Inches

Maximum Girth 17.59 Cm / 6.925 Inches

Recommended Girth less than 15.59 Cm / 6.138 Inches

—-

Goliath

Maximum Length 26.00 Cm / 10.25 Inches

Recommended Length less than 23.50 Cm / 9.25 Inches

Maximum Girth 20.73 Cm / 8.161 Inches

Recommended Girth less than 18.73 Cm / 7.374 Inches

I´m insterested in this product, the measurements that you written are BP or NBP?

Those new numbers seem a lot more accurate, I go past the scale they have on the tube (goes up to 200mm) but there is plenty of room above it. I’m sure BM’s sizing has contributed to a lot of people purchasing the wrong model, because the girth differences between the tubes are huge, lots of sucked in testicles haha. I’m 7.75x5.5 and have plenty of room to grow in the hercules. And they are BP segovax.

Thank you mate, according to your experience, which of them would you recommend for a penis like mine? 8x6’1 midshaft, BP.

You could probably use the Goliath, but the x40 might be more effective (at least until you outgrow it).

Technically bone pressed since it will press hard against your body, although fat pad may affect a tiny bit.

Well, I’m 7.5 NBPEL and 7.9 BPEL and after a good jelqing session and using the wine pump I’m within 1/4” of the valve in the X30, so 8 inches would be the limit. The Hercules has a couple of extra folds in the Gaiter so you might fit 8.25” in there but you’d be touching the valve. Girth-wise I’m 5.3-5.4 and pumped 5.75 it’s getting close, another 1/4 inch and it’ll be getting the limit but you might get 6.25” pumped..

Must be the difference in fat maybe?

It’s possible, my NBP is just a hair over 7”, I don’t tend to expand much lengthwise with pumping at all though so my length in the tube is about the same as out of the tube.

I’m bit confused with those numbers.

Here is what inside book says:

Yeah the first stats the of devices, gaiter uncompressed and the size of the device as a whole, not just the insertable part. You could use those stats to know whether or not you have enough space to store the device somewhere.

The max is quite close to my estimates, but keep in mind you want space to grow.

Correct me if I’m wrong but
My MSEG is 5ish close to 5,5
I have x30.
Referring to bathmate book my unit girth is too big for it?

You’re really close to the max if you’re at 5.5 inches.