Maru MR-4 Push Bike, 12" Magnesium Alloy Frame w/ Free Stand - Red/White Brand_WD40 Apply a moderate amount of

Apply a moderate amount of C3 Ceramic Wet Chain lube to the inside chain link while spinning pedals in a reverse motion

That's because the redesigned ULTEGRA ST-R8170 DUAL CONTROL LEVERS have all-new ergonomics

XXLShimano RT26

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Tire Clearance: 45mm (Measured Width)

Maru MR-4 Push Bike, 12" Magnesium Alloy Frame w/ Free Stand - Red/White Brand_WD40 Apply a moderate amount ofMR 4 (12") FRAMES MAGNESIUM ALLOY (12") FORK MAGNESIUM ALLOY (12") HANDLE BAR ALUMINUM ALLOY (22. 2 x 390W x 2. 0T) GRIP THERMOPLASTIC RUBBER (22. 2 x 100mm) HEADSET HI TEN STEEL (28. 6 x 44 x 30 H=21mm) SADDLE pp+pu (Polypropylene + Polyurethane) (12") SEAT TUBE ALUMINUM ALLOY (22. 2 x 180L x 2. 0T) SEAT POST CLAMP ALUMINUM ALLOY TIRE RUBBER (12" x 2. 125) INNER TUBE BUTYL RUBBER (12" x 1. 95) HUBS ALUMINUM ALLOY (14G x 16H x 3 8 x 95W x 100L)