BMW Motorsport M2 CS Racing/M4 GT4 Rear Flange
SKU: 29306776748

BMW Motorsport M2 CS Racing/M4 GT4 Rear Flange

$179.10 $199.00
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

BMW Motorsport M2 CS Racing/M4 GT4 Rear FlangeMotorsport Developed Rear Hub Upgrade for Endurance Strength and Reliability The BMW Motorsport Rear Flange Hub Upgrade is a factory engineered component designed to handle the extreme demands of endurance and competition use. Originally developed for the M2 CS Racing and M4 GT4, this upgraded hub flange features a thicker, full face hubcentric design, providing enhanced durability and reduced stress compared to the lightweight OE version found on

Motorsport-Developed Rear Hub Upgrade for Endurance Strength and Reliability

The BMW Motorsport Rear Flange Hub Upgrade is a factory-engineered component designed to handle the extreme demands of endurance and competition use. Originally developed for the M2 CS Racing and M4 GT4, this upgraded hub flange features a thicker, full-face hubcentric design, providing enhanced durability and reduced stress compared to the lightweight OE version found on standard F8X models.

During long, high-load track sessions, the original hub design can develop stress cracks around the outer hubcentric surface — particularly under endurance racing conditions. The Motorsport version addresses this by increasing material thickness and reinforcing the contact surface, distributing load more effectively to ensure consistent reliability.

Why Upgrade?

  • Genuine BMW Motorsport component, developed for GT4 and CS Racing models

  • Reinforced flange design prevents hub-centric stress cracking

  • Improves reliability in high-load and high-temperature conditions

  • Maintains OEM geometry and fitment

  • Perfect for endurance, sprint, and time-attack builds

Key Features

  • Motorsport-grade forged and heat-treated steel construction

  • Full-face hubcentric mounting surface for reduced stress concentration

  • Direct OEM replacement – fits with standard BMW rear bearings

  • Compatible with optional BMW Motorsport heavy-duty bearing

  • Sold as a pair.

  • Direct bolt-on installation, no modification required

Compatibility

  • BMW F87 M2 Competition / CS

  • BMW F80 M3

  • BMW F82 / F83 M4

  • BMW M2 CS Racing

  • BMW M4 GT4

Recommended For

  • Endurance and high-performance builds

  • Track-prepared or competition-spec M2/M3/M4

  • Preventative upgrade during drivetrain rebuilds or hub service

Important Notes

  • Designed for motorsport use only – no manufacturer warranty

  • Sold as a pair.

  • Standard BMW rear bearing is compatible, though a BMW Motorsport bearing upgrade is also available for maximum endurance reliability

  • Regular inspection is recommended during competitive use

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29306776748

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4.9 ★★★★★
Based on 307 reviews
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Verified Purchase
Lemon Twist
Belleville, US
★★★★★ 4
Love them as a cheap, effective warmer.
Color: Lavender
These really work well and are inexpensive ($20). I bought one for myself and my wife. Up front they tell you what kind of mugs/cups not to use, so read the information areas. We tried insulated mugs and the heat doesn't get passed the insulation barrier and the outsides get pretty hot to touch. We now use ceramic mugs and they work very well on these warmers. There are a number of temperature settings and we found the higher settings to be too hot. You will have to experiment with your own mugs to see what works. The sensor works well letting the warmer know if a mug is in place and it will shut down after 5 minutes without a mug. Unless your cat comes along early it won't get its feet scorched accidentally. The automatic timer works as advertised as well. Four stars because I found that trying to figure out how to actually turn the warmer off was a bit difficult and not so intuitive. Would definitely recommend these warmers. Hope this review helped.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
C
Verified Purchase
Clifford Baker
Natrona Heights, US
★★★★★ 5
A very good present for someone special
Color: Black
I got this from a girl you can go ahead and melt scented candles. Just stick the holder down on. It puts out a nice scent cause you 12 hours of warmth to maintain your cup of drink or sent up the room a bit works well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
S
Verified Purchase
SANDY & CLAUDE
Louisville, US
★★★★★ 5
GREAT AT KEEPING MY COFFEE HOT!!! when i said HOT, I mean HOT!!! *****
Color: Black
So far it's GREAT!!!. That warmer works great so far I plugged it, set it at the maximum (185f), put my ceramic cup of hot coffee on it and let it for 5 hours. when I checked it it was as hotter than when I put it on and the cup was really hot to the touch. The glass top is very hot so be careful, I touched the marble counter under where the warmer was and it was not even hot (now I'll try with a wooden top desk to see if it will be the same). So I don't think that you need to set it at the maximum to keep your coffee hot , probably (149f) will be good enough So far it does exceed my expectation , very easy to use and the price is right. I'll update if something happens but for now 5 STARS *****
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Reviewed in the United States on January 4, 2026
D
Verified Purchase
Denise Blanchard
Dallas, US
★★★★★ 5
It works great
Color: Black
It's a great find so many different heat settings and timer settings I love mine
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
S
Verified Purchase
S Dee
Charlottesville, US
★★★★★ 1
KEEP LOOKING
Color: Black
I have used a coffee mug warmer all of my long adult life. This one is the worst. I had to get a new one because my new coffee mugs were too big to fit on the old warmer. Yes this is large and will fit most cups I would think. But the amount of attention this thing requires is ridiculous. No simple on/off switch and leave it and forget it. You have to keep touching points in order to find the on and off area, and then you have to keep tapping it to get the temperature you want, but if you take your cup off and put it back, the temperature goes back to the lowest and starts blinking until you tap it to make it solid at the temperature you want. I got it yesterday and it’s going back today. Trust me on this you won’t like the attention it requires.
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Reviewed in the United States on January 14, 2026

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