S&S big-bore kits for Royal Enfield

S&S Cycles big bore kit for Royal Enfield 650 camshaft-kit-royal-enfield-650

Royal Enfield is on a winner with its 650cc twins as American engine giant S&S Cycle has now added 750cc and 865cc big-bore kits.

This follows the recent announcement that premium Swedish suspension manufacturer Ohlins has developed suspension grades for the twins and the Himalayan.

S&S also have other performance parts for the new Interceptor 650 and Continental GT 650.

They include clutch kits ($US399.95), mufflers ($US474.95) and handlebar adjuster kits ($US69.95).

But the biggest news is the 750cc big-bore kit at $US630.95 (about $A900) and 865cc kit ($US634.95).

S&S usually only make big-bore kits and performance gear for Harley-Davidson and Indian V-twins.

This is the first time the Wisconsin company has produced performance parts for any other specific motorcycle.S&S Cycles big bore kit for Royal Enfield 650 camshaft-kit-royal-enfield-650

The company stress that the performance gear is for “closed-course competition use only”.

While they do not yet reveal power and torque output for the kits, they have released the following tech details.

750cc big-bore kit:

Stock

S&S 750 Kit

Bore X Stroke

78 x 67.8mm

83.5 x 67.8mm

Compression Ratio

9.5:1

11.0:1

865cc kit:

Stock

S&S 865 Kit

Bore X Stroke

78 x 67.8mm

90 x 67.8mm

Compression Ratio

9.5:1

11.0:1

The kits feature comprehensive engine upgrades including larger cylinders and pistons in addition to new head gasket.

Royal Enfield’s 648cc parallel twin produces 35kW (47hp) and 52Nm of torque. Output should increase about another 17kW to around 52kW.Royal Enfield Interceptor 650 arriving bore

Here is the full list of S&S performance parts for the new Royal twins.

Part

Price (USD)

Price (INR – For Representation only)

Dynojet Power Commander V with Calibration

USD399.99

INR27,760

High-Flow Air Intake Eliminator Plate Kit

USD23.95

INR1,662

High-Flow Replacement Air Filter

USD59.95

INR4,161

High-Compression 11:1 Piston Kit

USD492.95

INR34,211

Stainless Muffler Set

USD641.95

INR44,552

Race only Stainless Muffler Set

USD474.95

INR32,962

Handlebar Adjuster Kit (INT 650)

USD69.95

INR4,855

Performance Clutch Kit

USD399.95

INR27,757

High-Performance Camshaft Kit with Shims

USD186.95

INR12,975

3 Comments

  1. Hello
    I contacted S&S Cycle because I am interested in the big bore kits. Unfortunately they never responded. I want to know what other mods are necessary to make to have kits fit the Interceptor.
    Regards
    Andy

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