This Item no longer available

Below you will find information about an item(s) that BBR no longer manufactures or sells. This information is provided for current owners of these items and for historical purposes. We do not have any more of this item(s) (new, used, scratch-n-dent, or otherwise). We do NOT maintain lists of customers that have these items for sale or that wish to purchase them. All items that BBR currently sells are listed on our Product pages.

Unfortunately, we cannot produce "one-offs" of any of these discontinued items. They were discontinued when we determined that they were no longer profitable to manufacture. Generally, making a single item costs about 10 times the old retail price - or we lose money on it - so we rarely do it. The past 20 years of building playbike performance products has taught us that we need to sell a quantity of about 100, a year, of any particular item for it to break even. So, if you can find 100 people to pay us up front, we'll consider making just about anything. It's that simple.

If you're looking for an item that isn't listed here or on our current Product pages, we also have a more historical section of our website. Check out our detailed BBR Product ID page for lots of photos and general information about BBR products of the past.
Big Bore Upgrade Kit - Kitaco 143SE - 160cc SE-4V *
Big Bore Upgrade Kit - Kitaco 143SE - 160cc SE-4V * 

For those of you that already have Kitaco's 143cc SE bore kit, this kit allows you to upgrade your kit to the Complete 160cc 4-Valve Big Bore Kit. Kitaco engineers designed a brand new SOHC 4-Valve head that produces exceptional horsepower and is available in two displacement packages. This 160cc version and a very potent 143cc version. Key features of this new head design include: centered spark plug location for superior combustion effeciency, Pent Roof combustion chamber design and the use of Y-Style slipper type rocker arms. This rocker arm design is lighter weight then typical screw type and runs with less friction. A forged, 60mm piston with MoS2 coating is matched to an aluminum cylinder with a plated aluminum sleeve. A 56mm stroker crankshaft is then used to create a displacement of 160cc. This is the same engine kit used by the BBR Race Team to dominate the MM12E class in 2008. NOTE: Requires ND IY24 (410-KLX-1176) spark plug sold seperately. 
   • 4-Valve Head Assembly
• Forged, Moly coated piston kit (60mm/14mm pin)
• Stroker crankshaft (56mm/14mm piston pin)
• Gasket kit
 Additional Specifications:
160cc = 60mm bore x 56mm stroke, Valve Size = Intake: 21.5mm x (2), Exhaust: 18.5mm x (2)

Stock KLX110 - 53.0mm bore, 50.6mm stroke
Additional BBR Race Team Mods are available to further enhance the performance of this item. Call BBR for details.

Installation Notes:
Requires crankcase mod for crankshaft clearance. Or, BBR # 410-KLX-1200.

BBR General Jetting Guidelines Chart

Part NumberApplicationPrice 
410-KLX-1602Big Bore Upgrade Kit - Kitaco 143SE - 160cc SE-4V * $1,899.95
Optional Parts:
410-KLX-1176Spark Plug - ND IY24 / Kitaco SE Heads *$29.50
410-KLX-1177Spark Plug - ND IY27 / Kitaco SE Heads *$29.50
410-KLX-1180Camchain - Kitaco Silent/HD (94L) / KLX/DRZ110*$60.95
410-KLX-1200Crankcase Set - Pre-Bored / 160cc Bore Kits /KLX/DRZ110 03-09 *$235.95