SKU: 61522605645

M7 Speed R53 MINI Cooper Lightweight Crankshaft Pulley - Standard Diameter

Sale price$169.16 Regular price$187.95
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

M7 Speed R53 MINI Cooper Lightweight Crankshaft Pulley - Standard DiameterThe M7 Speed lightweight crankshaft pulley will add power, acceleration and performance to your MINI. The lightweight crank pulley reduces crankshaft rotational mass which equals additional increased horsepower, torque and throttle response. Design This beautiful design is a result of advanced computer modeling and high precision CNC machining. Made in the USA from billet 6061 T6 aerospace grade aluminum alloy and finished with a deep black anodized

The M7 Speed lightweight crankshaft pulley will add power, acceleration and performance to your MINI. The lightweight crank pulley reduces crankshaft rotational mass which equals additional increased horsepower, torque and throttle response.

Design

This beautiful design is a result of advanced computer modeling and high precision CNC machining. Made in the USA from billet 6061-T6 aerospace grade aluminum alloy and finished with a deep black anodized coating and laser etching.

The Micro V-Belt grooves are machined to exacting SAE J1459 specifications for minimum belt slippage at maximum boost. Use this in combination with the M7 Speed 16 percent Supercharger Technology Pulley for maximum performance and boost yourself to the next level of MINI tuning and performance.

From the factory, the MINI suffers from no positive drive key on the crankshaft snout to drive the lower pulley. The factory pulley is press fit onto the crank. All aftermarket pulleys are slip fit at best and rely on the bolt to provide adequate clamp force to prevent the pulley from slipping.

The M7 Speed crank pulley is engineered with an interference fit onto the crankshaft eliminating pulley slippage on the crankshaft.

Features

  • Super Lightweight. Weighs in at 17 ounces (0.5 kg)
  • Save 6.2 lbs (2.8 kg) from stock
  • Reduces damper weight by an amazing 88.5 percent!
  • Prefect balance is achieved by symmetric design and high precision machining.
  • Industry exclusive interference thermal fit to eliminate high RPM slippage on the crankshaft.
  • Supplied with a brand new high quality ARP Racing bolt and precision ground flat washer
  • Micro V-Belt grooves are machined to exacting SAE J1459 specifications

Installation

Simple to install. Heat the pulley to 400 degreesF (205 degrees C) in your kitchen oven or using a small propane torch and the pulley will drop straight onto the crank.

When it cools it will shrink on to the crank. Finish the installation with the supplied ARP bolt and precision flat washer and presto...more power, more reliability and more overall performance for your supercharged MINI Cooper.

Made in the USA

Fitment Notes :
A larger 4 percent oversize speed increasing crank pulley will add just that little extra added supercharger boost and performance. This beautiful design is a result of advanced computer modeling and high precision CNC machining.

Made in the USA from billet 6061-T6 aerospace grade aluminum alloy with a deep black anodize coating, the M7 Speed 4 percent oversize - speed increasing pulley will provide a lifetime of reliable use.

Weighing in at just 17 ounces and supplied with a brand new high strength ARP bolt and precision ground flat washer, the M7 Speed Super Light crank pulley is best in class.

Each M7 Speed product is Engineered....Tested....and Proven to Perform!

  • 02-06 Mini Cooper Hatchback 05-08 Mini Cooper Convertiable
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: 61522605645

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4.3 ★★★★★
Based on 11 reviews
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Verified Purchase
Sasa Li
Belleville, US
★★★★★ 5
Good muse easy to hold
Color: Blue, Style: 1-Pack
Very good design, easy to hold mouse movements is very smooth
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
B
Verified Purchase
Bill
Bozeman, US
★★★★★ 5
Fantastic keyboard
I did a lot of research before choosing this keyboard, and man am I glad I got it! The split is great, very comfortable. The arch is minimal, but it does the job. I also really like this scissor-switch technology, no more backspacing to fix a key that didn't register the first time! The built-in wrist rest is also really nice. I type a lot for work, and at a rate of 55 WPM. The keyboard gives just the right amount of feedback, and the keys are not mushy at all. It's also a very good looking keyboard, and is very responsive. I have heard some people mention (not just on this keyboard) that they have some lag/delay with their typing. I would bet the farm that they have plugged the receiver into a USB hub. If you're going to do that, then get yourself a USB extension cable, because the hub will cause interference with ANY wireless dongle you plug into it. Just a foot or so of distance from the hub will alleviate that. I found that out with my prior Logitech keyboard, after lots of searching around for what the cause could be. The ONLY thing I would improve is fairly minor: It does not have dedicated keys for Page Up/Down, Home, or End. You need to hold down the function key and use the corresponding arrow key for those functions. Not even remotely a deal breaker, this keyboard is fantastic in every other aspect.
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Reviewed in the United States on November 22, 2025
S
Verified Purchase
Sofia
Houston, US
★★★★★ 5
Great Keyboard & Excellent Customer Service
I’ve been using this keyboard for almost 3 years and it has worked great for me the entire time. Comfortable, reliable, and perfect for long hours of work. The customer service was also great — very responsive, helpful, and professional throughout the process. Very happy with the product overall and would definitely recommend it.
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Reviewed in the United States on May 9, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 5
Soft keyboards ( updated)
The keys fell off very easily after only 2.5 months of use. It is a nice and smooth keyboard. I like it, but it didn't last even 3 months. I am trying to get it repaired by them since it was so recent that I got it- I will update this review later once I hear from the manufacturer. This is an update to my original post. I am extremely impressed with the quality of customer service and how fast they addressed my concerns regarding the product and they honestly back up their product. Not only did they respond fast, but they also replace my keyboard. Not just fix it, replaced the whole thing and it is also backed by their manufacturer warranty. I’m so happy and love that I get to have my keyboard back to use for hopefully a lot longer this time. It truly is a comfort keyboard and I love how smooth the keys feel when typing for long periods of time. Thanks guys for the prompt response! Today 3/27/2026 I received my brand new keyboard to replaced the one with the broken keys and I’m so happy to it back again and fully working thanks guys for the great customer service. Truly appreciate it.
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Reviewed in the United States on March 24, 2026
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Verified Purchase
Christy
Omaha, US
★★★★★ 5
Great keyboard at the right price
I bought this to replace my old Logi Ergo K860. I like the idea of curved keyboard. But the distance between my left and right hands on Ergo K860 was bothering me ever since I bought it 5 years ago. I would say I never got used to it. The Ergo started to act up one day with one key F not working properly. I tried to fix it and considered getting another one, then I saw this keyboard with a much better price. So I took the chance and went with this cheaper option. I like this one better than Ergo for the following reason: 1. The layout is more comfortable. Yes, it took me a while to get used to it like I would with any keyboard. I don't have to twist my wrists to reach any keys. 2. Keys are not too loud. It's not going to silent, but better than Ergo. 3. Battery life is great. I make a living by typing my keyboard. I only charged this keyboard once so far (4 months). 4. The price is great for what I got.
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Reviewed in the United States on September 7, 2025

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