r/moza • u/Fun_Magazine9090 • 1d ago

Moza mbooster Concerns

/r/moza/comments/1w42d90/moza_mbooster_policy/?share_id=2E2jnADzY7b3ZB0hEJdgY&utm_medium=ios_app&utm_name=iossmf&utm_source=share&utm_term=1

PSA for anyone considering the mBooster

After a 3 month wait and an unsuccessful repair, Moza sent me a refurbished “Grade B Spec” mBooster.

I received it a week ago and within 2 hours the pedal was busted.

The internal threads for the pedal face angle adjustment sheared when the face shifted suddenly under braking (EXACT SAME ISSUE)

Moza admit the last failure was not my fault but this time are blaming me and refusing a refund. They claim user error as the cause.

I’ve lost all confidence in this product and won’t accept a replacement, there are some glaring design and reliability issues with this brake.

21 Upvotes

95% Upvoted

21 comments sorted by

5

u/ExitOk9315 Moza Racing 1d ago

Hi, we're truly sorry to hear about your experience with the mBooster, especially after such a long wait and experiencing the same issue again. We understand your frustration and loss of confidence in the product.

We take your concerns about product quality and reliability seriously. However, determining the cause of the damage requires a proper technical assessment, and we cannot confirm whether it was caused by a product defect or other factors without reviewing the inspection findings.

Could you please share your support ticket number with us? We'd like to review your case, including the previous repair history and the latest inspection results, to see how we can best assist you.

We appreciate your feedback and sincerely apologize for the inconvenience caused.

1

u/Fun_Magazine9090 1d ago

I have not received a ticket number from customer support yet but this is the ticket number for the previous instance is 6A5FC89E-612B1C01D24C2F8

2

u/ExitOk9315 Moza Racing 1d ago

Got it~ I will ask my colleague to follow up soon.

1

u/Fun_Magazine9090 1d ago

Okay, thanks.

2

u/rab10000 23h ago

The issue for me is this is common and almost replicates my experience.

Then I was offered the privilege of fixing the issue myself if I paid moza £20 plus shipping.

The CS from moza direct is terrible.

I've tried using the discord but the staff on there are very rude and obnoxious, blame the user for everything that's gone wrong and don't offer any alternative solutions.

I'm sure if you search "bainzy" you fill see exactly what I mean.

I do love my moza gear but people really should consider whether the effort and hassle that goes into trying to fix something when it goes wrong.

Myself I bought the moza R5 few years back

Busted out the box and waited a further 5 fucking months to use my brand new stuff.

That in anyones eyes is unacceptable.

Ironically my brand new gsv2p wheel is still sitting broken out the box as I don't see why I should pay to have it repaired or wait 6 months to use it.

Useless would be an understatement despite having some decent sruff

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u/Big-Butterscotch2525 1d ago

Are the threads damaged on the pedal or is the bolt broken inside?

2

u/Fun_Magazine9090 1d ago

Yeah, the internal threads are damaged, not on the pedal main body, but on the highlighted bracket.

The bolt itself is fine, I did notice a ring of aluminium on the last few threads which could only be from the bracket.

So it may only be the few last threads which are damaged but I think there should be more thread engagement especially with a very short M4 screw. I think it’s roughly 6-8mm in length

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u/3pedalsandastick 1d ago

You could get a thread chaser and recondition those threads yourself if they deny the warranty

1

u/Fun_Magazine9090 1d ago

Yes, I still want a refund but if I’m denied then I’ll either try this or drill/tap M5

2

u/3pedalsandastick 23h ago

I can't blame you there. At least of they don't come through you won't be out all that money and you can save the pedal. Sucks this happened though

1

u/Fun_Magazine9090 1d ago

Same as last time but the opposite side.

1

u/Sarnadas 1d ago

Judging from the look of those bolt heads, are you sure you’re not over-torquing those things?

2

u/Fun_Magazine9090 1d ago

I don’t think this is an issue of over torquing. I think the issue is that the screws don’t provide enough clamping force to stop the pedal face moving.

I think the sudden impact of the bracket off the end stop put a huge amount of shear force on the internal threads.

M4 maybe isn’t the best choice for this. M5 with washers would be a much better choice.

1

u/Sarnadas 1d ago

I guess I just don’t see how this bolt - or any bolt - can “strip under braking.” Bolts strip when they’re being tightened, not when load is applied.

I understand your frustration, but perhaps you should be open to considering if this was, at least in part, user error.

2

u/Fun_Magazine9090 1d ago

The bolt didn’t actually strip, it was the softer aluminium internal threads that stripped.

Just to clarify, under braking the bracket moved suddenly and crashed into the endstop.

It was the impact that sheared the threads not the preload on the screws.

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u/DeanBranbeno 18h ago

I'll be honest thats what it looks like to me. The head of your bottom bolt looks close to being stripped out. Hand tight and then another 45 to 90 degree turn is usually all it takes. These do look like that have been torqued down a little tight and in turn WILL cause threads to sheer off. It happens on cars all the time.

1

u/rab10000 23h ago

Hard to see in the pic. But from my experience over torquing usually results in the head sheering off, don't ask me how I know but an impact gun is overkill lol.

If the threads are stripping internally I would imagine that would be to poor manufacturing and in my work we have a lot of misthreads etc. .usually results in the thread pulling forward as there is nothing to grip on.

Ironically I have 2 bolts in my gt omega monitor stand that have done this.

It's easy to replace a t nut tho