Can you put 15"/16" tires/rims?

[Geaux]

can these work on a 2306 rockwood tt/many more tires to choose from ,has any one tried this??.....I love this forum ya'll always help when questions are asked,very polite group of rvers.

[rkswyo]

I plan on doing this myself. Taking some measurements there appears to be plenty of room. I plan to go from the 205/75 14 load range c tires to a 225/75 15 d load range. Also gives me roughly 2" larger diameter tire. Ground clearance is an issue for the type of camping I do as well as a stouter sidewall.

[sherdep]

send Darren (Teamgl) a Private Message - he has the flagstaff and was going add bigger tires - he had a 2" lift kit ftom forest river but not sure if he ever used it or not.

Forest River Forums - View Profile: teamgl

[Dave_Monica]

Watch the tire clearance at the top of the wheel well. Some campers (like our Rockwood 2605) don't have much clearance even with the stock diameter tires.

Dave

[Ovair]

Are you asking if you can put 15" tires on 16" rims?

[sherdep]

Originally Posted by Ovair

Are you asking if you can put 15" tires on 16" rims?

I would hope not but from what I can gather they want to either fit 15" or 16" tire and rim combo under their 2306 - doubt it will work without some sort of a lift kit

I can tell you from what space I have under my 2306 - I highly doubt you will be able to fit 15" tires without some sort of a lift cause like Dave said there isnt much clearance - I have the 14" tire upgrade with the dual steps.

[rkswyo]

I am sure from trailer to trailer is different. I am looking at doing it on a Grey Wolf 19rr. From my measurements it should have plenty of room to go up what I want to without a lift. The 19rr dosen't have the fender skirts which gives alot more room.

[LadyWindrider]

If you change the tire/rim combination, make sure you check/adjust your hitch, to get your trailer back level when towing, assuming it is now. No, you can't put 16 inch tires on 15 in rims, or 15 inch tires on 16 inch rims. for that matter. You may have room to swap all the wheels and the tires to a larger size. Measure carefully.

[teamgl]

Originally Posted by Geaux

on a 2306 rockwood tt/many more tires to choose from ,has any one tried this??.....I love this forum ya'll always help when questions are asked,very polite group of rvers.

Based on my experience with A 2011 23LB (or 2306) I would say this is not a viable option in stock form. In looking at the photos of the 2012 models, I would say 'measure carefully, my friend.'

take a look-see under the camper to verify your clearance between the the top of the tire and the inner finder well (top, bottom, side - forward and aft. also verify the distance between the tires.

The distance between the tires does not allow for much room for a larger wheel. See photo below.

My recommendation - pick a great tire for your rim and enjoy the camper. without significant modification, this camper format is not suited for a tire with a significantly larger outer diameter.

[teamgl]

moved from the stock tires on the 13" rims to an off road tire on the 14" rims. the outer diameter of the new tire is 26.6"- this required a .5" lift on the camper.

Below are photos showing the comparison of the stock and new tires and the "after" photo of the camper.

[Taranwanderer]

OK...I'm a Jeep guy, so don't get me wrong--I love off-road tires. But why would you need/want them on a towed vehicle? You're paying for traction that you'll never use...??? Am I missing something? You can get larger truck or trailer tires, probably in a better/higher load range, without the off-road tread, so why the gnarly meats? I mean, other than that they look friggin' cool?

[teamgl]

Originally Posted by Taranwanderer

OK...I'm a Jeep guy, so don't get me wrong--I love off-road tires. But why would you need/want them on a towed vehicle? You're paying for traction that you'll never use...??? Am I missing something? You can get larger truck or trailer tires, probably in a better/higher load range, without the off-road tread, so why the gnarly meats? I mean, other than that they look friggin' cool?

These tires are the only 8 ply tires I could find for the 14" rims and still fit under the camper (with seemingly little modification). We ice-fish and hunt in conditions that require good traction and ability to handle sharp rocks that would slice normal trailer tires. In the conditions we camp in -- standard trailer tires are called " Fire Crackers "

'cause they go "pop"

My setup is definitely for everyone - but it works for us.

I wanted to show the OP that larger tires require modifications to the trailer and a tire requiring a 15" or 16" rim will likely not work on this format. (although on other Forest River products larger tire/rim combinations might be workable)

[sherdep]

Originally Posted by Taranwanderer

OK...I'm a Jeep guy, so don't get me wrong--I love off-road tires. But why would you need/want them on a towed vehicle? You're paying for traction that you'll never use...??? Am I missing something? You can get larger truck or trailer tires, probably in a better/higher load range, without the off-road tread, so why the gnarly meats? I mean, other than that they look friggin' cool?

If I remember correctly Darren (Teamgl) does alot of Ice fishing and takes his camper across the frozen lake for one - am pretty sure he will chime in here and let ya know the other reasons as well

Well he chimed in after I posted this but am gonna leave it cause I was close to what I had figured LOL

[alageezer]

Going from 14" to 15" wheels usually is not a problem, as long as you do the measurements described above. The comment I want to emphasize is from 15" to 16". Most, except for the very heaviest 15" wheel is a five lug, and all 16" are six lug. Only way to overcome this is new hubs and brake drums, making it pretty expensive.

That's the problem I'm having. My trailer has 4K axles, using the biggest tire/wheel combo available, and still keep the 5 lug 15". Only alternative I can see is a better quality tire, but same size.

[Taranwanderer]

Originally Posted by teamgl

These tires are the only 8 ply tires I could find for the 14" rims and still fit under the camper (with seemingly little modification). We ice-fish and hunt in conditions that require good traction and ability to handle sharp rocks that would slice normal trailer tires. In the conditions we camp in -- standard trailer tires are called " Fire Crackers "

'cause they go "pop"

Man, I wanna go camping where you go camping!

[acadianbob]

Originally Posted by teamgl

These tires are the only 8 ply tires I could find for the 14" rims and still fit under the camper (with seemingly little modification).

Kumho Radial 857

Just put a set of these on; 8 ply and speed rated Q (99mp). Yep, it's a trailer tire.

[HONDAMAN174]

I had to upgrade to the kumho's as soon as I bought my new TT because the c load rating that came on it was within 150 lbs of max weight with the trailer empty! Don't know what forest river was thinking when they did that. Anyways, the kumho's in the d rating work great and they just barely fit in the well's. Just remember to play around with the air pressures to see what's good for you. I keep mine around 50 psi and it doesn't make the trailer too bouncy. Might want to think about a tpms system too. I only have a single axle so it was a no brainer for me to get it but it's nice to see when a tire is going down vs. when it's too late.

[Dave_Monica]

Originally Posted by HONDAMAN174

I had to upgrade to the kumho's as soon as I bought my new TT because the c load rating that came on it was within 150 lbs of max weight with the trailer empty! Don't know what forest river was thinking when they did that. Anyways, the kumho's in the d rating work great and they just barely fit in the well's. Just remember to play around with the air pressures to see what's good for you. I keep mine around 50 psi and it doesn't make the trailer too bouncy. Might want to think about a tpms system too. I only have a single axle so it was a no brainer for me to get it but it's nice to see when a tire is going down vs. when it's too late.

That seems odd that the tire load rating would be that low relative to the trailer weight. The manufacturers usually supply tires with sufficient load to exceed the axle rating.

The load range 'D' tire should be aired up to 65 psi if you want the rated load. At 50 psi, they may not have any more load capability than the 'C' range tires they replaced.

Dave

[HONDAMAN174]

Forest river's response when I called them on it was interesting: Well, if you subtract out your tongue weight and fully inflate the tires, then you will only be UNDER the weight capacity of your trailer by 50 pounds. By the way, we do not recommend fully loading your trailer.

[Dave_Monica]

Originally Posted by HONDAMAN174

Forest river's response when I called them on it was interesting: Well, if you subtract out your tongue weight and fully inflate the tires, then you will only be UNDER the weight capacity of your trailer by 50 pounds. By the way, we do not recommend fully loading your trailer.

Surprised that Forest River didn't re-rate the camper's GVWR as not to overload the tires supplied. The GVWR of the camper seem to be calculated as the axle weight ratings plus the tongue/pin weight. In your case the tire load rating were 50 lbs less than the axle weight.

The campers tires should always be inflated to the maximum pressure noted of the tire's sidewall. Running less that rated pressure in the tires could lead to heat build up and tire failure.

Dave