Overview Product Description Big Bore Kit Increases bore from stock Increase compression ratio from 9.5:1 to 11.0:1 Kit includes cylinder sleeves, pistons and head gasket Made in the USA Product Videos Custom Field Product Reviews Write a Review Write a Review × S&S Cycle S&S Cycle #920-0144 - Big Bore Kit - 83.50 mm - 750 cc - Royal EnfieldĀ® 650 Twin Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
S&S Cycle | sku: 0904-0054 S&S Cycle #920-0145 - Big Bore Kit - 90.00 mm - 865 cc - Royal Enfield 650 Twin MSRP: $849.95 Was: Now: $764.96 Add to Cart S&S Cycle | sku: 0925-1297 S&S Cycle #330-0709 - Camshaft Kit - High Performance - Royal EnfieldĀ® 650 Twins MSRP: $214.95 Was: Now: $193.46 Add to Cart S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart Recommended S&S Cycle | sku: 0904-0054 S&S Cycle #920-0145 - Big Bore Kit - 90.00 mm - 865 cc - Royal Enfield 650 Twin MSRP: $849.95 Was: Now: $764.96 Add to Cart S&S Cycle | sku: 0925-1297 S&S Cycle #330-0709 - Camshaft Kit - High Performance - Royal EnfieldĀ® 650 Twins MSRP: $214.95 Was: Now: $193.46 Add to Cart S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart × OK
S&S Cycle | sku: 0925-1297 S&S Cycle #330-0709 - Camshaft Kit - High Performance - Royal EnfieldĀ® 650 Twins MSRP: $214.95 Was: Now: $193.46 Add to Cart S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart Recommended S&S Cycle | sku: 0904-0054 S&S Cycle #920-0145 - Big Bore Kit - 90.00 mm - 865 cc - Royal Enfield 650 Twin MSRP: $849.95 Was: Now: $764.96 Add to Cart S&S Cycle | sku: 0925-1297 S&S Cycle #330-0709 - Camshaft Kit - High Performance - Royal EnfieldĀ® 650 Twins MSRP: $214.95 Was: Now: $193.46 Add to Cart S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0904-0054 S&S Cycle #920-0145 - Big Bore Kit - 90.00 mm - 865 cc - Royal Enfield 650 Twin MSRP: $849.95 Was: Now: $764.96 Add to Cart S&S Cycle | sku: 0925-1297 S&S Cycle #330-0709 - Camshaft Kit - High Performance - Royal EnfieldĀ® 650 Twins MSRP: $214.95 Was: Now: $193.46 Add to Cart S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0925-1297 S&S Cycle #330-0709 - Camshaft Kit - High Performance - Royal EnfieldĀ® 650 Twins MSRP: $214.95 Was: Now: $193.46 Add to Cart S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0910-4526 S&S Cycle #920-0100 - Big Bore Forged Piston Kit - 3.937" Bore - 107" Twin Cam - Standard MSRP: $499.95 Was: Now: $449.96 Add to Cart S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0910-4524 S&S Cycle #920-0101 - Big Bore Forged Piston Kit - 3.937" Bore - 98" Twin Cam - Standard MSRP: $524.95 Was: Now: $472.46 Add to Cart S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart
S&S Cycle | sku: 0910-3554 S&S Cycle #920-0070 - Piston Kit - 1250cc Big Bore - XL MSRP: $549.95 Was: Now: $494.96 Add to Cart