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Mikuni HSR Smoothbore Carburetors

4.67 out of 5 stars 3 Customer Reviews

Mikuni HSR smoothbore carburetors give superb throttle response, and deliver all the airflow needed for any level of Harley® performance. Being one of the best upgrades you can give your motorcycle, these Mikuni carburetors substantially increase power compared to stock. However, it is the dramatic improvement in throttle response that makes these flatslide HSR models such outstanding performers. Mikuni HSR 42mm and 45mm smoothbore carburetors are offered individually to meet the specific custom application needs of performance engine builders. They are available in standard or polished aluminum versions.

Results 1 - 3 of 3

Carburetor, Mikuni, HSR Smoothbore, 42mm, Each

Part Number: MKU-TM42-6

4.67 out of 5 stars ( 3 )

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Carburetor, Mikuni, HSR Smoothbore, 45mm, Polished, Each

Part Number: MKU-TM45-2PK

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Valve Body, MIKUNI HSR48 RACE KIT POLISHED

Part Number: MKU-48-2P

Not Yet Reviewed

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