BMP '11-14 RZR XP 935cc Big Bore Kit

BMP '11-14 RZR XP 935cc Big Bore Kit


Regular price $1,295.00

Cylinder Core Exchange Options(see drop down menu): 

  • Option 1: Purchase Outright - No core is required to be sent in - Raises kit price by $400

  • Option 2: Exchange cylinder, send yours back with 14 business days. As soon as you do, the $400 charge will be refunded. CORE MUST BE SENT BACK WITHIN 14 BUSINESS DAYS. If no core is received within 14 business days no credit will be applied. 

  • Option 3: Exchange cylinder - Your order will be waiting for your cylinder to arrive. Once it does, we will ship the kit. No core charge will be applied since we will have your cylinder prior to shipping the big bore cylinder. 

Valve shimming is necessary with our cams, BMP can shim the valves for you. We will need your cam caps, valve springs, retainers, and buckets sent in for this. Charge is $200

BMP Oil Mod can be performed for an extra $45 - MAKE SURE TO GET THIS DONE!! You can do this mod yourself and it will save you a lot of frustration later on when your buckets fail.

Please send this WORK ORDER FORM with any parts sent in.

PN: ADBM12-303 (Retail $899.95)



This 96mm big bore for your '11-14 RZR XP 900 significantly increases horsepower and torque! We take the stock 875cc cylinder and precision bore and nikasil plate it to our spec. We then send you with 2 high performance forged pistons, all rings circlips and wristpins. It also includes a base gasket and head gasket. Chose from our specially designed head gasket making your motor a 10:1 compression ratio for turbo setups or the standard 12:1 pump gas setup. Cylinder exchange required. Produces 117 HP to the crankshaft, nearly 30 HP over stock with supporting mods. Supporting mods include; BMP Camshafts, Bored Throttle Bodies, BMP Porting, BMP Billet Intake Manifolds, Power Commander 5, BMP Exhaust of your choice.

Included in base kit: Bored & Re-Nikasiled cylinder, two pistons, rings, circlips, wristpins, base gasket, and head gasket.

Recommended options for maximum power: Full Exhaust SystemIntake Kit, Bored Throttle Bodies, High Flow Intake Manifolds, Professional Head Porting, High Performance Cams, Power Commander 5, Stage 2 Adjustable Clutch Kit.

You can find all of these items included in our Complete 935 Big Bore Kit. 

What to send: Cylinder only for this kit. If purchasing cams or port work we will also need the cams or head.

Bikeman Performance

920 Pine Street

Saint Croix Falls, WI 54024

Watch the video below for proper engine break-in protocol: