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JE, Aprilia, 88.00 mm Bore, Single

Your Price: $314.99

SKU: 317221S

Please Allow Approximately 3 Weeks or Less for Shipping

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JE, Aprilia, Mana John Deere RSX850i, 11.50:1, 88.00 mm Bore, Single Piston

As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for sport bike and other motorcycle engines. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and riding application to provide the ultimate combination of durability and performance. From the road course to the drag strip everything in between, JE Pistons’ performance is proven with every handful of throttle and wave of the checkered flag. Equip your bike with the best in forged pistons.

  • Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
  • Designed specifically for each engine and use application to provide optimized performance durability
  • Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
  • Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings
  • Made 100% in the USA
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GTIN: 00193564195708

Piston Series

JE Pistons
Cylinder Head

RSX 850I
Bore Diameter

88.00 MM
Compression Ratio Actual

11.50:1
Piston Head Type

Dome
Piston Volume

-1.70 CC
Piston Material

2618
Forging Type

FSR
Piston Average Weight

298 GR
Ring Set Included

Yes
Top Compression Ring Thickness

0.0400 IN
Second Compression Ring Thickness

0.0480 IN
Oil Ring Thickness

0.111 IN
Wrist Pin Material

5115 Low Carbon Steel, Case Hardened
Wrist Pin Length

2.050 IN
Wrist Pin Wall Thickness

0.150 IN

Years

2015
2014
2013
2012
2011
2010
Show All

Makes

Aprilia
John Deere

Models

Mana 850
RSX850i
RSX850i Midnight Black Special Edition
RSX850i Sport
RSX850i Trail
Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine.
Note: For pistons BELOW the block @ TDC – value in box must be a NEGATIVE number (-0.000)
Note: For pistons ABOVE the block @ TDC – value in box must be a POSITIVE number (0.000)
Note: For a DISH piston – value in box must be a NEGATIVE number (-0.0)
Note: For a DOME piston – value in box must be a POSITIVE number (0.0)
Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want.
Enter the number of cylinders of your engine
Bore
Finished bore of your engine
Stroke
Stroke of your engines crankshaft
Rod Length
Ctr. to Ctr. length of your connecting rods
Gasket Bore
Head Gasket bore diameter
Comp. Gasket
Compressed Head Gasket thickness
Block Deck Height
Center of main bearing bore to top of block
Top Ring Down
Top of 1st ring to top of pistons(FLAT)
Chamber Volume
Cylinder Head chamber volume in CC’s
Dome/Dish Volume
DOME (-) or DISH (+) vol. (theoretical) in CC’s
Piston to Deck
Top of BLOCK to top of piston (FLAT) @ TDC
Click “Calculate” for dimension results.
Total Volume
 
Cylinder Volume
Total cylinder volume in CC’s =
Clearance Volume
All effective vol. above block deck @ TDC in CC’s =
Gasket Volume
Volume of your head gasket in CC’s =
Top Ring Volume
Total volume above the top ring @ TDC in CC’s =
Deck Volume
Volume of area above the pistons @ TDC in CC’s =
Piston Top Land
Piston top land diameter for volume calculations =
1/2 Stroke
1/2 stroke of your engine’s crankshaft in inches =
Compression Ht.
Ctr. of piston pin to top of piston (FLAT) in inches =
Cubic Inches
Cubic inch displacement of your engine =
For the given dimensions, your compression ratio