AMGSC

Brembo GT 6pot Monoblocks are too big for my front wheels so they are going to machine the diameter wider so that 10mm hubcentric spacer will fit.

Is this safe?

I had a bad accident when my left rear wheel came off when driving on the 405fwy at 70mph so I don't to want to risk another episode of self-ejecting wheels.

CynCarvin32

I would just buy some wheels that have a big enough back space from spoke to hub to make the brakes fit. It seems like $$$ has not been a factor in the car thus far so I think a set of new wheels wont be a big deal. Spacers could work but I never think they are a great idea so I would avoid them.

sdsilverm3

10mm are normally okay as long as they're hubcentric but with the luck you've had with your car I'd say pass and get new wheels. The machining part doesn't make me feel comfortable about it either.

smgC32

Nothing wrong with hubcentric spacers. The problem is with your shop or your wheel. There is no need to modify any good wheel to accomodate a spacer. They should mate right up as the spacer has a flange on the outer portion that fits the wheel onto it just like the stock hub flange fitting.

AMGSC

I heard H&R makes hubcentric spacers in 10mm (front) and 5mm (rear) so that machining the wheels to widen the diameter would be avoided.

I also heard that they cost about $100 a set. Do you recommend them? If not, then should I just have the Shop refund my wheels or exchange them for a Wheel set that fits the Brembo GT Monoblocks like one of you suggested?

If they ordered the wrong sized wheels, then I have no obligation to keep them. Correct?

They would also have to widen the fenders significantly more to accomodate an extra 10mm in the front. I imagine that they would have to heat the fenders before pounding them out. That makes me nervous also.

yeuchau

should be fine, but you need to make sure you use the right bolts

Blake P

If you specified that you would need them to clear the Brembo's, I'd say you have no obligation to keep them. If they are custom wheels, there's no reason to run spacers. The offset should be made ideal to properly fit your particular brake/suspension setup. If they're not custom, then sometimes you have no choice because of the limited availability of offsets for a particular wheel.

AMGSC

Yes, these wheels were custom made by JDM Work in Japan for my car and yes, I did specify that they would need to clear the Brembo GT Monoblocks 6P Front-4P Rear. In fact I ordered them before the Wheel Package from the same shop. Looks like I'll just have to get a refund on the Wheels/Tires and void the Brake kits.

Blake P

So either the shop messed up ordering the wheels or the manufacturer messed up making them. Personally, I'd make them get it right if you like the wheels and are set on the wheel/brake combo.

smgC32

Could you be more specific as to what you mean when you say they were going to "machine the diameter wider so that 10mm hubcentric spacer will fit."
Were they going to increase the center bore diameter? I don't understand what they were proposing.

What is the wheel width and offset for both front and rear? What is the distance between the back side of the spokes and the hub mounting pad? How much extra clearance do you need? What size brake kit are you using? What size rotors?

The front fender clearance is so tight with wheel fitments anyways, the extra 10mm increase in track will most likely cause problems with the fender if you are running 8.5" front wheels. 8.5" fronts with a 30-32mm are about the only sizes that fit with a 235 tire. A 10mm spacer will reduce the offset to 20 or 22 or less depending on your wheel's original offset and will most definately require fender rolling which is a comprehensive job for the W203 chassis front fenders. There is no "U" channel lip on our cars. Just a cheap 90 degree bend for strength. This angle will need to be completely rolled to create a "U" and will require painting the front fenders. The rear is much easier to roll and you can use a heat gun and mallet.

advans

+1

Fai+H777

I have 7mm Lorinser spacers in the front an its raining right now so I'm not gonna check the back... But a mechanic told me my wheels are hanging on by a few mm.