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Park Tool CBW-4 Metric Wrench with 9mm and 11mm Open Ends

4.1 4.1 out of 5 stars 31 ratings
$8.75
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CBW-4 – 9mm/11mm
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Purchase options and add-ons

Color Blue
Brand Park Tool
Material Alloy Steel
Item Weight 37 Grams
Item Package Quantity 1

About this item

  • Compact open ended wrenches
  • High strength steel with a nickel plate finish
  • Made in the USA and covered by Park Tool's legendary limited lifetime warranty
› See more product details

Frequently bought together

Park Tool CBW-4 Metric Wrench with 9mm and 11mm Open Ends
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Get it as soon as Friday, May 31
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Sold by Bicycle Addiction and ships from Amazon Fulfillment.
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Park Tool Metric Wrench, 8mm/10mm
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Product Description

Park Tool CBW-4 in use

Park Tool CBW-1 & CBW-4 Open-Ended Metric Bicycle Wrenches

Park Tool CBW wrenches are small, handy, nickel-plated wrenches designed for use on brakes, derailleurs, and any other component with small fasteners on a bicycle. Nominally 1/8" (3.2mm) thick for ease of access to brakes and other hard-to-reach areas. Available with 8mm and 10mm (CBW-1) or 9mm and 10mm (CBW-4) open ends.

Park Tool bike shop repair center vintage

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been Park Tool's sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. Each one of our 500+ tools are a product of our decades of experience and expertise in the industry, in the shop and on the trail.

Product information

Technical Details

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Park Tool CBW-4 Metric Wrench with 9mm and 11mm Open Ends

Park Tool CBW-4 Metric Wrench with 9mm and 11mm Open Ends

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Park Tool CBW-4 Metric Wrench with 9mm and 11mm Open Ends
Park Tool CBW-4 Metric Wrench with 9mm and 11mm Open Ends
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Price$8.75-12% $10.95
List: $12.40		$7.98-48% $13.99
List: $26.98		$9.95$6.99
Delivery
Get it as soon as Friday, May 31
Get it as soon as Friday, May 31
Get it as soon as Thursday, May 30
Get it as soon as Friday, May 31
Get it as soon as Friday, May 31
Get it as soon as Friday, May 31
Customer Ratings
4.14.1 out of 5 stars31
4.74.7 out of 5 stars240
4.54.5 out of 5 stars134
4.64.6 out of 5 stars7
4.44.4 out of 5 stars76
4.54.5 out of 5 stars1,270
Sold By
Bicycle Addiction
Bicycle Addiction
cyclingdeal_usa
SONZUIA-US
Bicycle Addiction
Bicycle Addiction
material
Alloy Steel
Plastic
Rubber, Alloy Steel
Rubber, Carbon Steel, Polyvinyl Chloride
Alloy Steel
Plastic
head style
Open End
—
—
—
Open End
C Shaped
style
—
OBW-4 Offset Brake Wrench Brake Centring
17mm
—
—
CNW-2 Chainring Nut Wrench
operation mode
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
finish type
Powder Coated
Painted, Polished
Powder Coated
Powder Coated
Powder Coated
Painted, Polished
weight
37 grams
0.02 pounds
0.1 kilograms
—
0.01 pounds
0.02 kilograms

Customer reviews

4.1 out of 5 stars
4.1 out of 5
31 global ratings

Top reviews from the United States

whatscrappening
5.0 out of 5 stars Perfect, when you need a thin wrench...
Reviewed in the United States on February 26, 2021
Size: CBW-4 – 9mm/11mmVerified Purchase
Super handy, I ended up buying all (6) sizes, to cover the range from 8mm to 18mm.
Unfortunately, I couldn't find one for 12mm.
Helpful
 Report
Abc
3.0 out of 5 stars Over priced and cheap finish
Reviewed in the United States on June 17, 2018
Size: CBW-4 – 9mm/11mmVerified Purchase
Works and has the correct sizes of jaws. Finish quality is low, especially considering the cost. It could have been a better tool. It seems a bit thick for my application. I had to grind the thickness down, which means I could have bright a cheaper wrench if I had to grind it anyway.
Helpful
 Report
Ray-co
4.0 out of 5 stars Worked great
Reviewed in the United States on March 23, 2019
Size: CBW-4 – 9mm/11mmVerified Purchase
Worked great removing the thread adapter on my Shield 9mm barrel
One person found this helpful
Helpful
 Report
Amazon Customer
3.0 out of 5 stars Little bit heavy.
Reviewed in the United States on June 12, 2015
Size: CBW-4 – 9mm/11mmVerified Purchase
Nice spanner but a bit heavy for a carry along tool and a bit light for a workshop tool. I was hoping it would be the same thickness as the Park Tool cone spanners, a thin really strong material that would make great carrying tools in a smaller size.
3 people found this helpful
Helpful
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Sal
5.0 out of 5 stars Makes adjusting some rear derailleurs easier
Reviewed in the United States on March 4, 2020
Size: CBW-4 – 9mm/11mmVerified Purchase
Using this to adjust mainly Shimano tourney rear derailleurs.
Helpful
 Report
tekwiz47
5.0 out of 5 stars strong
Reviewed in the United States on August 26, 2013
Size: CBW-4 – 9mm/11mmVerified Purchase
for what they are they are strong enough to do the job especially if you want to keep your costs down these are worth the money for home use
Helpful
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Mike Cashen
5.0 out of 5 stars Five Stars
Reviewed in the United States on August 25, 2018
Size: CBW-4 – 9mm/11mmVerified Purchase
wrench
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Amazon Customer
5.0 out of 5 stars Five Stars
Reviewed in the United States on November 3, 2015
Size: CBW-4 – 9mm/11mmVerified Purchase
Product as described and fast shipping.
Helpful
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Top reviews from other countries

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Tonal
3.0 out of 5 stars Imagen no corresponde con producto
Reviewed in Spain on March 23, 2022
Size: CBW-4 – 9mm/11mmVerified Purchase
En la imagen se muestra una llava modelo CBW de 8-10 Y el producto es siiliar pero el modelo es diferente ya que el tamano de la llave entregada es de 9 -11
Report
Phil Hughes
5.0 out of 5 stars ... as normal with Park Tool while being light and easy to carry around
Reviewed in the United Kingdom on May 6, 2016
Size: CBW-4 – 9mm/11mmVerified Purchase
High quality as normal with Park Tool while being light and easy to carry around. I wish I had got this years ago!
Report
Curtis Belfour
3.0 out of 5 stars Three Stars
Reviewed in Canada on June 13, 2015
Size: CBW-4 – 9mm/11mmVerified Purchase
Little sharp around the edges. I put tape around handle of wrench
Report
Nikki Stefan Sullivan
5.0 out of 5 stars Five Stars
Reviewed in the United Kingdom on January 8, 2015
Size: CBW-4 – 9mm/11mmVerified Purchase
Perfect park tool quality. Its good to buy the 8/10mm as well.
Report