Calipers expanding when hot? How much?

[curtis265]

i think the bigger problem is actually wheel spoke flex

anyway if u get spacers make sure they're hubcentric and get the studs extended too. Should be fine #yolo

[Rage King]

OP if your that worried - just buy then spacers to be safe. otherwise dem bbc will expand when hot mate!

[mugen_ctr]

3mm wheel spacers is the minimum size or thickness they make atm, its more than enough to give u clearance, imo 3mm isnt going to effect anything, ur wheel nuts will still have enough threads to bite on on studs, rather be safe than sorry with a 4mm gap verses a 1mm gap tolerance on the calipers to wheels lol

[daevilone]

i think the bigger problem is actually wheel spoke flex

anyway if u get spacers make sure they're hubcentric and get the studs extended too. Should be fine #yolo

^ this.

the effects of heat are going to be 0 to negligible. Not even worth considering. However, the wheel WILL flex as you are cornering on track. 1mm isn't much so you may run into issues there. Depends on a lot though, but as someone else mentioned most BBK manufactures ask for 2mm clearance.

[euRo_noob]

i think the bigger problem is actually wheel spoke flex

anyway if u get spacers make sure they're hubcentric and get the studs extended too. Should be fine #yolo

I'm no expert on caliper clearance etc but I thought this would've been the main reason of caution. Not seeing anyone mentioning the spokes flexing when cornering hard on the first page made me think I was a bit of a derp. I think that'd be more of a problem than the calipers expanding.

Not sure about the DC2R but I tried I think a 3mm or a 5mm (can't remember) spacer on my Euro and when I tried to fit the wheel nuts back on, there was definitely not enough thread to hold my wheel back on securely so I took them off.

A 3mm spacer for your piece of mind - definitely.
Willing to buy extended studs to accommodate the spacer - don't know, up to you. I'm not sure how much extended studs cost and the costs to also take off old studs/install new ones.

[curtis265]

extended studs are an easy diy

even I, a guy with hands as skilled as potatoes could do it

[Rage King]

[crobaa]

I don't think I'd need extended studs on a 3mm spacer. I still like my 1mm washer idea but nobody has commented on it yet

Wheel still sits on hub center
I have more thread on the standard studs to use
The washers are all same height
The pressure from the wheel nuts should still be evenly distributed


How important is it that there's between the hub and the wheel from stud to stud? From memory the wheel is hollow at the back on that point anyway?

[trism]

whats washer thickness?

[PHO]

The washer isnt machined. So ur gonna have trouble with wheel wobble if its slightly off.

[mugen_ctr]

do not use washer, by using washers, u are creating 4 separate loads on the hub itself from the wheels, even if u torque it up evenly doesn't mean it will work and as pointed out the wheels will be off as washers aint designed for this particular application,

so realistically speaking, having a flat mating surface u spread the load evenly across the hub, so the idea of using washers is rather a odd one LOL

Theres a reason why race cars or show builders dont use washers to space out, even if its 1mm lol

Do it once, do it right and go for the spacer, 3mm isnt going to kill u

[curtis265]

do not use washer, by using washers, u are creating 4 separate loads on the hub itself from the wheels, even if u torque it up evenly doesn't mean it will work and as pointed out the wheels will be off as washers aint designed for this particular application,

so realistically speaking, having a flat mating surface u spread the load evenly across the hub, so the idea of using washers is rather a odd one LOL

Theres a reason why race cars or show builders dont use washers to space out, even if its 1mm lol

Do it once, do it right and go for the spacer, 3mm isnt going to kill u

it's called bearing failure