My advice is the take the speed bumps at a sharp angle at first and see what that gets you. We have speed bumps in our neighborhood and found out later that I really didn’t need to take it at an angle but do it anyways to be on the safe side. I think you might even find you don’t need a front lift system. Good luck!

 

Nice avatar name. What kind of moto are you interested in?

 

if it slightly scratches the underside of the lip at a soft angle it's OK (providing it happens at almost no speed), this part can be considered as a consumable, if the angle is not soft at all and the lip actually bumps on its edge, making an horizontal scissor constraint on fixtures, that's not good.

While test driving a 981 GT4 and 981 Spyder which have comparable extended and low lips, I noticed most of speed bumps would lightly scratch if you don't approach a little bit sideways and at very low speed, but never had a hard hit whatsoever. I found it a PITA for every speed bump you encounter to have to stop, wait for no fore coming traffic to then take part the other side of the road to make your angled approach.

On the other hand I almost never scratched with my 718 GTS despite the lowered sport suspension.
I think the approach angle difference comes more from the forward extension those bumper shape and lips induce than the ride height itself.

 

There are various attachable “armor” for the bottom of low spoilers that you can also use but over time the impact/scraping will be bad.

 

I just took delivery of my first PCA magazine in the mailbox yesterday and there is an ad in it for this type of product. I might give the manufacturer a call and see if it's something to consider.

 

There is a plastic strip called an air dam that is attached under the lip and it's about an inch tall. That will usually be the first thing that scrapes. It is a consumable piece of plastic and is relatively inexpensive to replace. That gets torn up before the bottom of the splitter/front lip.

 

I've been abusing mine scraping it on everything for months now and it's no worse than when I got it. You're going to be okay with most speed bumps/parking garages but just use common sense. If it's a new one take it slow check google maps before going into any parking garages if it looks sketchy just don't park there.

 

We have a speed bump, rounded, on the other side of the gate out. I'm able to roll over it at about 10 or 15 mph with no problem. But my wife's car,a 64 thunderbird, always scrapes

 

Check out the 50+ Jokes thread. "I have a heightened fear of speed bumps. But I’m slowly getting over it."

Going over any raised surface at an angle means that the forward wheel lifts the car before the rest of the car gets there.

Going over any speed bump at an angle also means that both front wheels (and read wheels) don't hit the bump at the same time. That's easier on the car.

 

Too bad about ‘Holeshot’. Are you allowed to change out the ‘Oh’ for a zero? Just an idea. Or even a ‘3’ for the ‘E’?

 

I am finally in the process of purchasing a GT4. Deposit sent. Signing the paperwork tomorrow.
My neighborhood has two speed bumps that are relatively smooth and rounded versus steep and tall. Can I let the front lip/spoiler/splitter scrape over these and how much can it handle before damage needs to be corrected? Can front lip scraping cause damage to the front bumper or fenders? I know that there are too many variables to definitively answer these questions but how much abuse have you all been able to put the front end through before doing real damage?
I will likely get a front axle lift system within the first couple of months but until that is installed, am I safe to slowly, carefully drive over these speed bumps?

Front lip is part of the bumper
Corret?
I’ve repaired mine 3 times on my 18 base

 

Personally, I gave up on the constant need to take speed humps in my local area at an angle, not to mention the occasional unexpected one in a different area. I looked at lift kits, protective tape etc. but ended up raising the front suspension by 11mm using SPACCER suspension lift kit - for all makes and models - SPACCER. The instal was done by my Swiss-German Porsche factory trained mechanic who, for some reason, was not keen on an aftermarket lift kit. Now before anyone panics about the effect on camber etc, I had a wheel alignment and complete suspension check by a expensive but excellent shop that specialises in suspension and steering for track cars as well as heritage vehicles. Anyway, it has been a complete success. No problem with wheel alignment, no change to handling and no more scraping!

 

The thing is tough - you'd shocked at the punishment it can take. I've whacked mine on insanely steep parking garage ramps, ferries, and California parking lot entrances (which all seem inexplicably steep). No damage to the bumper either. I've driven this thing everywhere (including a 10 day cross country trip). There's no need for a front-axle lift kit - just need practice and care.

 

I always approach speed bumps from one side and drive slowly over at an angle and it tends to either avoid or mitigate the scrapes.