21" tire replacement
What are some of your thoughts?
Anyway, I would go with an alignment to make sure everything is "ok"...a little insurance for your new tires.
I had my tires installed yesterday and the installers stated that I would not need an alignment. "Their" opinion about the continentals were that since they were summer tires, the crabbing/skipping when turning and cold weather cornering and stuff were unevenly wearing out the tires since they were not made for Winter driving. When they took off my front tires and I got a chance to inspect the edges, they stated that I literally had about 800 miles left on them before I had to change them and I only have 4600 miles on my truck..
Also, I didn't know that the Macan comes with 21in summer tires too, and that most of their owners also pick the Pirelli Scorpions as the installers have done quite a few of them too.Since nobody on here has posted a pic of how the tires look on their GLC, I wasn't really sure what to expect. I must say, I REALLY like the way the scorpion tires look compared to the Continentals as they seem to be more aggressive looking and meaty. Last night, I went to my local Walmart and parked in the garage which is notorious making my GLC have the crabbing issue and I didn't experience any of those symptoms. Also, this morning I took my son to his school which has an out door parking lot which likes to make my GLC do the crabbing issue and nothing today. I know Pirelli tires are known to wear out faster due to the more lower profile stance but this is by far the best mod/change I have done to my truck, even more so than the Jb1 piggy-back. I don't think I am going back to summer tires now, and I will keep these tires on until I am ready to turn back in my lease. Plus the ride is similiar to the continentals if not better.
Hopefully, some of you guys that have more mileage on the Scorpion tires can report back in on tread wear and provide feedback
.thanks again guys!!!
3/4 close-up
3/4 Shot
Rear 295/35R21
Front 265/40R21
Last edited by bryant_is_bored; Apr 5, 2018 at 02:09 AM.
Can an "expert" chime in on the alignment report here? I'm curious why on the front the camber "actual" reads the same (-1.3), but the right is showing in "red" as out of spec, even though within spec. Also, on the rear, the camber "actual" is different for the right (-1.4) and left (-2.1), but within spec. Do the "actual" numbers not being the same or close to the same cause weird tire wear, would probably be my ultimate question?
Can an "expert" chime in on the alignment report here? I'm curious why on the front the camber "actual" reads the same (-1.3), but the right is showing in "red" as out of spec, even though within spec. Also, on the rear, the camber "actual" is different for the right (-1.4) and left (-2.1), but within spec. Do the "actual" numbers not being the same or close to the same cause weird tire wear, would probably be my ultimate question?
The reality for the difference in Camber specs is because there is simply no front or rear adjustment OEM! Only solution is to be able to state “within spec” by having broad parameters.
We saw the need therefore to reinstate from the early 90’s front Camber and Caster along with rear Camber (and extra Toe) facilities.
The K-MAC patented design simply replaces at the same time the 4 front and 4 rear highest wearing suspension bushings, providing precise single wrench adjustment accurately (under load, direct on alignment rack).
Ongoing adjustment capability for day to day commuting, encountering high cambered roads, altered height through load carrying or lowering, fitting wide profile tyres/wheels or curb knock damage.
Another popular kit manufactured is set of uprated rear bushings for the 6 multi-link arms. Significant improvement to rear end traction/stability, especially when applying power to lane change/overtake.
GLC 43, 63:
Front Camber & Caster kit #502816 $545
Rear Camber (& Extra Toe) #502226 $480
Delivery $30 one kit, $20 each additional kit. PayPal, Visa or M/Card
Also how do they work with the air body control? the car will adjust ride height according to different speed or drive setting. To my understanding, ride height will change the camber. if the car dropped, how do they work together?
Last edited by pk9394; Apr 10, 2018 at 09:49 AM.
The Best of Mercedes & AMG
Also how do they work with the air body control? the car will adjust ride height according to different speed or drive setting. To my understanding, ride height will change the camber. if the car dropped, how do they work together?
Re cost - example $480 compares more than favorably with say rear upper Camber and Toe arms that advertise at over $600. Yet are labour intensive to fit, adjust and have the disadvantage of further reducing the important clearece top of tire to outer fender when wanting to reduce costly, premature inner edge tire wear.
K-MAC lower arm adjusters also at the same time replace the 4 front and 4 rear highest wearing suspension bushings. Precise single wrench adjustable. Rear kit includes bush extraction tool allowing to fit on vehicle.
"How do they work" ....as above they simply re - instate adjustability allowing to "change tire contact angles" to compensate for signs of uneven wear.
Last edited by K-Mac; Apr 13, 2018 at 04:48 AM.
There are not a lot of tires to choose from in the 265-40-21 size. You might want to check out Atturo AZ850's. While they are not a well name brand, you can get a set of 4 in the correct 21 inch sizes for $536 delivered from Tires Easy.com. One of the forum members on the Macan forum has tried them and says they are every bit as good as the well known brand names.
Another choice is the Michelin Pilot Sport 4S. Tire Rack sells them and they are great tires, but they are expensive. And they are MB spec in the correct 21 inch sizes.
-Matt
you want crabbing.. try sport cup 2 tires on the new AMG GT63S sedans.. I drove one today..its 20 degrees outside..worst Ive ever seen.. not designed for sub 40 degree weather










