Shimano Curado 5BB 4.7 LP Cast LH – Model CU301K

Name: Shimano Curado 5BB 4.7 LP Cast LH – CU301K
Brand: Shimano
SKU: CU301K
Availability: InStock

Shimano Curado 5BB 4.7 LP Cast LH front view

Shimano Curado 5BB 4.7 LP Cast LH side view

The Shimano Curado 5BB 4.7 LP Cast LH (CU301K) is a premium low‑profile cast crankset designed for modern mountain bikes that demand a perfect blend of strength, lightweight performance, and precise shifting. Engineered with Shimano’s renowned quality standards, this left‑handed (LH) component delivers reliable power transfer on the toughest trails while maintaining a sleek, compact design.

Whether you’re tackling steep climbs, fast descents, or technical single‑track, the Curado 5BB provides the durability you need without compromising on pedal feel. Its 4.7 mm low‑profile chainring geometry reduces the chance of chain rub, while the 5‑bolt (5BB) interface ensures a secure fit on a wide range of frames.

Key Features & Benefits

Low‑Profile 4.7 mm Chainring: Minimizes chain interference and improves ground clearance.
5‑Bolt (5BB) Mounting System: Provides a robust and universally compatible interface for modern frames.
Left‑Hand (LH) Configuration: Ideal for riders who prefer a left‑handed crank arm setup.
Durable Cast Construction: Offers superior impact resistance for aggressive riding.
Precision‑Engineered Teeth: Ensures smooth, reliable shifting across the entire gear range.
Lightweight Design: Reduces rotating mass for better acceleration and climbing efficiency.
Shimano Quality Assurance: Backed by Shimano’s extensive testing and warranty support.

Technical Specifications

Brand	Shimano
Model	CU301K
Product Name	Curado 5BB 4.7 LP Cast LH
Mount Type	5‑Bolt (5BB)
Chainring Size	4.7 mm Low‑Profile
Handedness	Left‑Hand (LH)
Material	High‑strength Cast Alloy
Compatibility	Shimano 5‑BB frames, 1‑inch axle standards
UPC	022255242516
Country of Origin	Japan

Installation & Compatibility

The Curado 5BB 4.7 LP Cast LH is designed for straightforward installation on frames that support the 5‑bolt mounting standard. Follow these steps for a secure fit:

Remove the existing crank arm and ensure the bottom bracket shell is clean.
Insert the 5‑bolt mounting plate into the bottom bracket shell, aligning the bolt holes.
Secure the plate with the supplied bolts, torque to Shimano’s recommended specifications (usually 10‑12 Nm).
Slide the Curado LH crank arm onto the plate, ensuring the splines engage fully.
Fasten the crank arm bolt and torque as specified.
Check chain alignment and adjust the front derailleur if necessary.
Test ride to confirm smooth shifting and proper clearance.

Compatibility with other Shimano components (front derailleurs, chainrings, and cranksets) is guaranteed when used within the same series.

Frequently Asked Questions

Is the Curado 5BB compatible with 4‑bolt (4BB) frames?: No. The CU301K is specifically engineered for the 5‑bolt (5BB) mounting system.
Can I use this crankset with a right‑handed (RH) setup?: This model is left‑handed (LH) only. For a right‑handed configuration, choose the corresponding RH model.
What is the recommended torque for the crank arm bolt?: Shimano recommends a torque of 10‑12 Nm for optimal performance and safety.
Does the low‑profile design affect chain wear?: The 4.7 mm low‑profile chainring reduces chain rub and generally results in normal wear patterns when properly maintained.

Customer Reviews

“The Curado LH fits perfectly on my new 5BB mountain bike frame. It feels solid, yet surprisingly light. Shifting is crisp, and the low‑profile design keeps the chain from rubbing on the frame.” – Alex M., avid trail rider

“Excellent build quality. I love the left‑handed setup for my custom build. Shimano never disappoints.” – Jamie L., bike mechanic

Category	Fishing
SubCategory	Reels & Combos
Manufacturer	Shimano

SHIMANO CURADO 5BB 4.7 LP CAST LH CU301K