Nitto Mod 55
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Category:  Handlebars
Name:  Nitto Mod 55
Brand:  Nitto
Model:  55
Years:  1973 - ?
Country:  Japan
Weight:  320 grams (Spec), 390mm Width
Added By: Don Buska on 01/25/20
Updated By: Don Buska on 01/25/20
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Nitto Mod 55Nitto Mod 55Nitto Mod 55Nitto Mod 55
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StyleDrop-barFinishSilver alloy (matt -not polished)
Clamp Size26.0Left Sleeve MarkingsMOD 55 Logo
Right Sleeve MarkingsNitto LogoMaterialAluminum
Widths (cm)37; 38; 39; 40; 41; 42Drop (mm)135mm
Reach (mm)95mmEnd StampingsMod 55 (Width in mm) and the letter PS
General Information
High end handle bars that were used since the mid-70's and most recently a limited Anniversary Edition release.  Also, later available in an anodized black version.

Model table:

Model               Width         Drop         Reach   Weight
Mod 55-370      370mm      135mm     95mm    310g
Mod 55-380      380mm      135mm     95mm    315g
Mod 55-390      390mm      135mm     95mm    320g
Mod 55-400      400mm      135mm     95mm    325g
Mod 55-410      410mm      135mm     95mm    330g
Mod 55-420      420mm      135mm     95mm    335g

Often found on top end Japanese road bikes in the 1970's and 1980's.  They were unique in that most Japanese manufacturers went with 25.4mm (1") clamp size on their handlebars, while the Mod 55 is a 26.0mm clamp size like that used on European bikes in that era.  Outside the clamp area and engraved logos the bar diameter goes to 24.0mm.
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Additional Resources
Resources:Reference & Charts
Brand Information(click to expand)
NITTO's handlebars, handlebar stems and seat pillars for track races are certified for use in official Japanese KEIRIN races.  In addition to its already highly acclaimed handlebars, handlebar stems and seat pillars, the company now develops other bicycle parts made of metal tubes, such as frames, carriers and various accessories at its factories in Fukushima.

Date of foundation : 1923
President : Akira Yoshikawa
Employees : 50
Headquarters : 3-23-7 Minami, Hatogaya, Saitama 334-0013, Japan
Major products : Handlebars & stems, seat pillars, carriers, etc.
Tel : +81-48-286-7771
Fax : +81-48-286-7770
E-mail :
Website :
Recent Catalog:
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