New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

Wiseco PK1644 Top End Kit - 5.00mm Oversize to 52.00mm

SKU: 4863566

Wiseco PK1644 Top End Kit - 5.00mm Oversize to 52.00mm

Wiseco
$206.84
$206.84 $224.95
Sale Sold out
/
Shipping calculated at checkout.
In stock and ready for shipping
This is a pre order item. We will ship it when it comes in stock.
Bore: 52.00mm
Sizing: 5.00mm Oversize

Do not overbore 85cc engine.

Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set.

Vehicle Fitment:

2004-2011 KTM 105 SX
2003-2015 KTM 85 SX (17/14)
2005-2010 KTM 85 SX (19/16)
2013 KTM 85 SX (19/16)
2008-2009 KTM 85 XC
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle