KB Performance, large bore piston kit for 883-1200. STANDARD

Standard compression. Piston kit for 883-1200 conversion. Compatible with unmodified stock cylinder heads. Factory compression ratio 9:1. The pistons are flat-top, .125" below deck height, to achieve a 9:1 compression ratio with a compression height of 1.090".
Piston weight 310 gr. Piston pin diameter .792" and weight 97 gr.
Head type: Flat top / Dome +0.5 cc.
Compression height 1.090".
Bore 3.498" / Stroke 3.812".
Conrod length 6.926" / Cylinder length 4.650".
Includes 390 aluminium hypereutectic cast pistons with T6 heat treatment and 16% silicon, allowing a very tight clearance for greater durability and virtually no piston noise.
Note: The top compression ring will require additional clearance. See instructions.
Note: For 2004 onwards 883 XL models, 1200 cc cylinders must be purchased. The stock cylinders on 2004 onwards XL models have liners that are too thin to be bored out to 1200 size.


Specifications


Brand
KB Performance Piston


Application
86-22 XL883 (883 to 1200 conversion)


Sales unit
Set


Material
Aluminium


Packaging weight
1.165 kg


HS Code
84099100


Motorcycle family
SPORTSTER


Original name
KB Performance, 883-1200 big bore piston kit. STD