Lifted Subaru Tire Size Chart

Hey everyone, Scott from RalliTEK here again. We have been getting a lot of questions about what tire size one can run on their lifted Subaru lately so I compiled a list of verified tire sizes on different cars in the RalliTEK shop. I have 2 different columns, one is the standard size that we will tell anyone that they can run and then the other column is for an aggressive fitment. The aggressive fitment column usually comes with the potential for minor trimming, cutting/flattening of a pinch weld, not being able to run front mud flaps or at the very least, using a heat gun to melt the inner fender out of the way of the tire. Also be sure to notice that some of the tire sizes have an asterisk by them, this is because a 15” wheel is needed and may not clear the brakes on your car. This list was created using either the 1.5” or 2” RalliTEK lift kit and Method wheels.

CAR STANDARD FITMENT DIAMETER AGGRESSIVE FITMENT DIAMETER
13-17 CROSSTREK 215/75-15 27.7″ 235/75-15 28.9″
18+ CROSSTREK 215/75-15 27.7″ 235/75-15 28.9″
1998-2002 FORESTER 215/75-15 27.7″ 235/75-15 28.9″
2003-2008 FORESTER 215/75-15 27.7″ 235/75-15 28.9″
2009-2013 FORESTER 215/75-15 27.7″ 235/75-15 28.9″
2014-2018 FORESTER 235/75-15* 28.9″ 245/65-17 29.5″
2019+ FORESTER 255/55-18

225/65-17

29″

28.5″

245/65-17 29.5″
1997-1999 OUTBACK 215/75-15 27.7″ 235/75-15 28.9″
2000-2004 OUTBACK 215/75-15 27.7″ 235/75-15 28.9″
2005-2009 OUTBACK 215/75-15 27.7″ 235/75-15 28.9″
2010-2014 OUTBACK 225/65-17 28.5″ 235/75-15* 28.9″
2015-2018 OUTBACK 245/65-17 29.5″ 245/70-17 30.5″
2008+ IMPREZA 215/70-15 215/65-16 27″ 215/75-15 27.7″
* Denotes 4 cylinder non-turbo only

Still think you need some help? Shoot us a message or give us a call! 503-619-0055

RALLITEK ADJUSTABLE TRAILING ARM BRACKET

New to the product catalog at RalliTEK is the addition of a cutting edge trailing arm bracket for the older (2008 and older) rear strut cars. When you lift these cars, the rear tire moves forward in the wheel opening due to the swing of the trailing arm. One popular solution is to space the trailing arm down the same amount as the lift height to correct it. This works well but you only have one position for the trailing arm to bolt to. We developed this bracket to fit multiple cars and the result is 6 different positions to choose from so you can fine tune your rear tire placement in the wheel opening. During development, we found that there are 4 different trailing arm brackets available between the WRX/STi, Legacy, Legacy Outback, Impreza and Forester so it made sense to make one bracket that fit all of the cars.

The different mounting holes are for OEM height, 1” lifted height and 2” lifted height and then the different spacing is for the WRX/STi, Legacy, first generation Forester and Legacy Outback and the second gen Forester uses the other set of holes. Below is the guide to choosing which hole to start with, if you would like to fine tune the position, you can try a different hole until you get the tire where you would like it.

For the construction of the bracket, we chose to use 3/16” A36 mild steel that is laser cut, bent on a CNC press brake, MIG welded and then powder coated for excellent corrosion resistance in a very nice looking blue/silver hammer tone finish. The factory brackets are made out of thin stamped steel so we increased the material thickness to make them withstand the dynamic forces of taking your car off road; our own R&D 2004 Forester XT has been jumped with these brackets and even though all 4 struts ended up bending, the trailing arm brackets survived!

We recommend these brackets to anyone with a lifted Subaru or even stock height Subaru that wants to go off road with confidence and knowing that your car will handle the terrain.

subaru lifted outback forester crosstrek offroad

Offroad Subaru Suspension Torque Values

One question that has come across the RalliTEK desk is, “Can you send me the torque specifications for the suspension after I install my lift?” The interest in this question has lead us to create a chart for torque specifications for your Subaru Outback (2010-2019), Crosstrek (2013-2019), Forester (2009-2019), WRX (2008-2019), Impreza (2008-2019) and even STI (2008-2019). The chart covers the front strut torque values, rear suspension torque values and the rear subframe torque values.

SUBARU SUSPENSION TORQUE SPECIFICATIONS
FRONT TORQUE (FT-LBS)
LOWER STRUT BOLT 116
UPPER STRUT NUT 40
TOP HAT NUTS 15
SWAY BAR ENDLINKS 34
REAR  
UPPER STRUT NUT 24
TOP HAT NUT 23
LOWER STRUT BOLT 89
CONTROL ARM BOLT – CHASSIS 89
CONTROL ARM BOLT – KNUCKLE 89
SWAYBAR ENDLINKS 34
TRAILING ARM BOLT – CHASSIS 67
TRAILING ARM BOLT – KNUCKLE 67
TOE ARM BOLT – CHASSIS 74
TOE ARM NUT – KNUCKLE 44
REAR SUBFRAME  
MAIN BOLTS (M14) 107
SUPPORT BOLTS (M10) 52

We do highly recommend that you torque the fasteners with the car on the ground and the suspension loaded; torqueing fasteners while the suspension has no weight on it can cause premature bushing wear and can also give false alignment specifications.

Lifted Subaru Tires

So you have outfitted your Subaru with an awesome RalliTEK lift and you absolutely love how it looks but something seems a little off. You keep looking at your car and then notice that the stock tires and wheels just don’t compliment the new aggressive, ready for anything stance. You start looking around online at new tires and there are so many choices and so many questions that you just can’t decide what would be right for your Subaru. Here at RalliTEK we are more than happy to help with this tough decision.

One of the questions that we get asked a lot about lifting Subarus is what tire to run. For us at RalliTEK, the answer is fairly simple; a good all-terrain tire is hard to beat but selecting which All-Terrain tire can be confusing. A lot of the big name tire manufacturers are having their All-Terrain tires rated with the Three-Peak Mountain Snowflake rating which is a measure of the tire’s performance in the snow. Typically, cars and trucks with this tire rating are not required to chain up during winter conditions on mountain passes; very important for the Subaru community as tire chains are not recommended for use. The majority of the big-name tire manufacturers do have tire sizes that will fit on a Subaru but since they are made to fit trucks and SUVs, the selection is small as most lifted Subarus can clear a 28” tall tire but not much taller.

When we are asked about tire selection for a lifted Subaru, the tires that we recommend the most are: BFGoodrich All-Terrain T/A KO2, Falken WildPeak A/T3W, General Grabber AT2, Goodyear Wrangler Duratrac, or the Yokohama Geolandar A/T G015. These tires are all considered All-Terrain tires which mean that they are not an overly aggressive tread pattern; they will be quieter on the road than a Mud-Terrain, handle great in year-round driving and are suitable for most terrain that you will want to tackle with your Subaru.

The BFGoodrich KO2 is amongst the most popular All-Terrain tire due to the great reviews, long tread life, on-road manners and the available traction in on and off-road conditions. We have the Falken WildPeak tires on the RalliTEK 2018 Outback and they have been really good to us. They have driven great on the highway, handle gravel roads and light trails with ease and provide a lot of traction in the snow and ice. The General Grabber AT2 tires are a similar tread pattern to the BFG KO2 and many have given the tire positive reviews stating similar impressions to the BFG KO2. Goodyear Wrangler Duratracs are the most aggressive tread pattern on the list and are a very good all around tire with a little more road noise coming from the more aggressive tread pattern. Goodyear only offers a 29” tall tire so installation on a Subaru offers limited applications. The last tire on the list is the Yokohama Geolandar A/T G015, it is also the least aggressive tread design on the list. This tire has a tread pattern that is more geared towards a user that mostly uses their car on-road and light off-road conditions while the other tires offer a good balance of on and off-road driving.

Installing a good set of All-Terrain tires if you’re thinking of doing any kind of off-road driving is a must; tires like what we have recommended are able to withstand the harsher off-road conditions. Passenger car tires do not have the right construction to handle a weekend of driving forest service roads; the carcass is too thin and they will puncture easily.  Installing a set of any of the tires in this article on your Subaru will give you the confidence to get out in the wilderness and make it back without worrying about getting a flat in the middle of nowhere.

Still think you need some help? Shoot us a call! 503-619-0055

-Scott