Bicycle Superstore

Park Tool Offset Brake Wrench 10-13MM (OBW-4)

Park Tool Offset Brake Wrench 10-13MM (OBW-4) - Main image
$22.19 $29.99 In stock

Category: Accessories - Tool Workshop

About Park Tool Offset Brake Wrench 10-13MM (OBW-4)
The Park Tool OBW-4 is a specialty bicycle wrench designed for the installation and adjustment of side pull and dual pivot bicycle rim brakes. Its unique offset design and thin profile (2.1mm thick) allow it to access tight places where standard wrenches would be impractical.

The OBW-4 features 10, 11, 12, and 13 mm wrench openings to fit wrench flats found on many side-pull and dual-pivot brake calipers.

About Park Tool
Park Tool are the world's largest bicycle tool manufacturer. Located in St. Paul Minnesota they have been designing and manufacturing bicycle specific tools since 1963. Their dedication to quality and innovation have gained them the reputation for producing the best bicycle tools in the world.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.7 / 5 · 3 reviews)

Brian D. ★★★★★

Finally, a wrench that actually gets into those tight spots around the caliper without me having to remove the wheel. The 10 and 13mm ends are exactly what I needed for my old side-pull brakes.

Joseph ★★★★★

The offset head is a lifesaver for reaching those tight brake bolts without scraping my knuckles, and the 10-13mm sizing fits both my road and mountain bikes perfectly. It’s solidly built and grips the flats without slipping, even when the bolt is stubborn—this one’s going in my permanent toolkit.

Riley ★★★★☆

The offset head is a lifesaver for reaching those rear brake nuts without scraping my knuckles on the frame. Takes a bit of fiddling to get the 10mm side seated right, but once it’s on, it holds solid. Worked perfectly on both my road bike’s dual pivots.