Is this tool for 8 speed bikes.

Yes. All modern bicycle chains have 1/2" spacing, or pitch, between pins. This tool will work on an 8-speed chain.

This gauge has two measurements, 0.5 and 0.75, I have a 7 speed mountain bike. Which measurement should use for when it is time to get a new chain?

My understanding is that a 7-speed drivetrain can tolerate much more wear than newer 11- and 10-speed. My understanding is that 11-speed needs 0.5%, 10-speed is 0.75%. I would personally also use 0.75% for 9-speed, although I have gone farther to 1% without trouble in the past. But for a 7-speed chain you can certainly go to 1% wear before changing a chain. I'm sure there are chain wear tools out there that measure the larger 1% wear than this one. But if you use this one for a 7-speed chain, in my opinion you can consider the 0.75% level an early warning sign to replace the chain.

Where is this Park Tool made?

The package says USA. Based on what I learned from my bike mechanic, this is not the best choice. He showed me something that cost around $20 and just drops in and seems a little better. A chain gauge by ProGold seems like the one he has.

Alright, I must of missed something! Just what in tarnation does the size of a man's... cassette have todo with the condition of his chain?

The size of your cassette has nothing to do with the chain condition. Size doesn't matter, but using a 11X21 cassette would make you more manly! In this case the smaller the cassette the more manly ..... as opposed to the other thing .....

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Park Tool CC-3.2 Bicycle Chain Checker 5-12 Speed

Product ID: 2161598

Details

Brand
Park Tool
Item Weight
50 Grams
Item dimensions L x W x H
3.25 x 0.25 x
Material
Metal
Number of Items
1

✅Clear go/no-go wear indicator

📏Precision wear measurement

⚙️Compatible with 5-12 speed chains

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₱2014

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Don’t let chain wear slow you down — measure, maintain, and master your ride!

TRUSTED BY PROS - Park Tool’s CC-3.2 ranks #23 in Bike Shop Tools with a stellar 4.8-star rating from over 3,000 cyclists.
DURABLE METAL BUILD - Crafted from high-quality metal for long-lasting reliability and precision under all conditions.
COMPACT LIGHTWEIGHT - At just 50 grams and 11 inches long, it’s easy to carry on every ride or keep in your toolkit.
PINPOINT CHAIN HEALTH - Accurately measures chain wear at 0.5% and 0.75% thresholds to keep your ride smooth and efficient.
UNIVERSAL SPEED COMPATIBILITY - Works seamlessly with all 5 to 12-speed bicycle chains, making it the ultimate tool for any bike enthusiast.

The Park Tool CC-3.2 Bicycle Chain Checker is a precision metal gauge designed to measure wear on 1/2" pitch chains compatible with 5 to 12-speed bikes. Featuring a go/no-go indicator for 0.5% and 0.75% wear, it helps cyclists maintain optimal chain performance and extend drivetrain life. Lightweight and compact, it’s a must-have tool trusted by professionals and ranked among the top bike shop tools.

Specifications

ASIN	B000BR3LHQ
Best Sellers Rank	#14,360 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #23 in Bike Shop Tools
Brand Name	Park Tool
Customer Reviews	4.8 4.8 out of 5 stars (3,092)
Global Trade Identification Number	00763477001344
Included Components	Chain Tools
Item Dimensions	3.25 x 0.25 x 11 inches
Item Type Name	Tools
Item Weight	50 Grams
Manufacturer	PARK TOOL
Material Type	Metal
Model	CC-3.2
Part Number	150892
Thread Style	Unc
UPC	763477001344 744288052985
Unit Count	1.0 Count
Warranty Description	Limited Lifetime Warranty

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₱2014

Duties & taxes included

In stock

Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Philippines.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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