https://completepartskit.com Thu, 09 Apr 2026 16:55:42 +0000 en-US hourly 1 https://wordpress.org/?v=4.1.1 https://completepartskit.com/99-04-trx-400ex-big-bore-89-mil-complete-rebuilt-motor-engine-rebuild-parts-kit/ https://completepartskit.com/99-04-trx-400ex-big-bore-89-mil-complete-rebuilt-motor-engine-rebuild-parts-kit/#comments Fri, 26 Dec 2025 02:14:51 +0000 https://completepartskit.com/99-04-trx-400ex-big-bore-89-mil-complete-rebuilt-motor-engine-rebuild-parts-kit/






FITS ALL 99-04 HONDA TRX400EX SPORTRAX MODELS. NEW 89mm after market cylinder. CP JE or Wiseco forged hi comp pump gas piston. Hi temp piston rings. Hotrods or Wiseco crankshaft with rod. MLS big bore head gasket. Complete crankcase oil seal kit. Everything is new in the original packaging. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. DO YOU MAKE A LIVING WORKING ON BIKES? ARE YOU A SHOP OR DEALER. PRICES ARE SUBJECT TO CHANGE AND LISTINGS MAY BE REVISED AT ANY TIME WITHOUT NOTICE. At BPRATV we sell parts from the best names in the industry. Unless otherwise stated, we will put the quality of the parts we sell up against any other companies’ in the industry. Also, we stock the same parts from different manufacturers so that when back orders occur like they have been for the last year we have an alternate part to send that is the same quality. This would be the ONLY reason your order might be slightly different when it arrives. If you want a certain brand part just ask (if part is back ordered this may cause a delay on your order). 99% of problems can be easily solved without returning the entire order. Once items have been modified, installed, or used in any way they are not eligible for return. This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine. It requires special tools and has to be done 100% correct. Many parts must be measured down to. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic. It is the responsibility of the person assembling and tuning the parts to make sure they work correctly. If it can not be fixed we will supply you with a new one. It must be sent to us for inspection, and Millennium Technologies will determine if the cylinder is repairable. Also, we want information from customers when their experience is less than desirable so we know what areas need improvement the most. Please work with us and we will ALWAYS work with you.

]]> https://completepartskit.com/99-04-trx-400ex-big-bore-89-mil-complete-rebuilt-motor-engine-rebuild-parts-kit/feed/ 0 https://completepartskit.com/17-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/ https://completepartskit.com/17-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/#comments Fri, 14 Nov 2025 00:42:45 +0000 https://completepartskit.com/17-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/



2017 – 2025 XP1000 / Ranger CP top end rebuild kit new in the box. Stock bore cylinder (93mm). Hi temp piston rings. Billet universal cam chain tensioner kit. The kit does not come with lower cylinder gasket or head gasket, you will need to order a lower cylinder gasket and head gasket.

]]> https://completepartskit.com/17-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/feed/ 0 https://completepartskit.com/17-xp1000-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/ https://completepartskit.com/17-xp1000-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/#comments Fri, 07 Nov 2025 00:27:54 +0000 https://completepartskit.com/17-xp1000-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/






Ride Command Edition EPS. White Lightning Edition EPS. EPS Ride Command Edition. General XP 4 1000. Ranger Crew XP 1000. EPS High Lifter Edition. NorthStar Edition Trail Boss. EPS Northstar HVAC Edition. EPS 20th Anniversary Limited Edition. EPS Back Country Edition. EPS Polaris Pursuit Camo. EPS Back Country Limited Edition. RZR 4 XP 1000. High Lifter Edition EPS. Trails and Rock Edition EPS. Gold Matte Metallic LE EPS. Veliocity Blue LE EPS. RZR XP 4 1000. FITS ALL POLARIS RZR AND GENERAL XP 1000 MODELS! CP JE or Wiseco forged pistons. Hi temp piston rings. Top end gasket kit. Cylinder head stud kit. This is a bolt on kit with no machining required. Pistons us pump or race gas. At bpracingatv our kits come with parts from the best brands in the industry. What often makes our kits different is they are always more complete than our competitors’ and we have access to products other companies do not. We want you to spend as little time having to search for parts as possible. We always stock the exact same parts from different companies so that when back orders occur we have an alternate part to send that is the same quality. This would be the ONLY reason your order might be slightly different when it arrives. We have bulk pricing available for every item we sell. Just let us know how many you need! Please check your order when you receive it and let us know immediately if there is an issue. Parts that do not meet these requirements are not refundable. Unless otherwise stated, we stand behind the parts we sell 100%. The parts we sell are not DIY. Also, the part(s) in question must be sent back to us for inspection first. If a failure occurs we will send a new complete stud kit free of charge. Listing and template services provided by inkFrog.

]]> https://completepartskit.com/17-xp1000-xp-1000-stock-bore-cylinder-93mm-top-end-rebuild-complete-parts-kit/feed/ 0 https://completepartskit.com/yfz450-yfz-450-cylinder-stock-bore-complete-top-end-rebuild-upgrade-parts-kit/ https://completepartskit.com/yfz450-yfz-450-cylinder-stock-bore-complete-top-end-rebuild-upgrade-parts-kit/#comments Fri, 08 Aug 2025 06:41:40 +0000 https://completepartskit.com/yfz450-yfz-450-cylinder-stock-bore-complete-top-end-rebuild-upgrade-parts-kit/





FITS ALL YAMAHA YFZ450 CARB MODELS AND YEARS. New after market 95mm cylinder. Wiseco CP or JE forged piston. Top end gasket kit. This is a bolt on kit that requires no machining of any kind. Runs on race gas. Our kits come standard with CP-Carrillo, JE, Wiseco, Wossner Pistons, Hotrods or Wiseco crankshafts, Hotcams or Webcams, Cometic, Vertex, Athena, or Winderosa gaskets and seals, and we have many of our own parts we have manufactured specifically for us. We always stock the exact same parts from different manufacturers so that when back orders occur like they have been for the last year we have an alternate part to send that is the same quality. This would be the ONLY reason your order might be slightly different when it arrives. All parts we sell have been tested and we have had huge success with them for the last 20 years. If we ever have a part that does not function well it is immediately discontinued and we stand behind everything we sell 100% (unless otherwise stated in the listing). That way we can fix it for your ASAP. 99% of problems can be easily solved without returning the entire order. Once items have been installed or used in any way they are not eligible for return. This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine. It has to be done 100% correct, and many parts must be measured down to the. The correct knowledge and tools are required to do this. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic. 99% of failures from kits that have pistons is because the ring gap was not properly set. It is the responsibility of the person assembling the parts to make sure this is done correctly. Also, we want information from customers when their experience is less than desirable so we know what areas need improvement the most. Please work with us and we will ALWAYS work with you.

]]> https://completepartskit.com/yfz450-yfz-450-cylinder-stock-bore-complete-top-end-rebuild-upgrade-parts-kit/feed/ 0 https://completepartskit.com/honda-xr50-crf50-xr70-crf70-complete-88cc-big-bore-kit-race-head-big-carb-tb/ https://completepartskit.com/honda-xr50-crf50-xr70-crf70-complete-88cc-big-bore-kit-race-head-big-carb-tb/#comments Wed, 08 May 2024 06:17:05 +0000 https://completepartskit.com/honda-xr50-crf50-xr70-crf70-complete-88cc-big-bore-kit-race-head-big-carb-tb/








TB Parts Honda Z50/XR70/CRF70/CT70 88cc Complete Big Bore Kit With Race Head & Big Carb! TB Parts 88cc Big Bore Kit for Honda Z50/XR70/CRF70/CT70 – See Years Below! Add some performance to your pit bike! High quality parts that you have come to expect from TB Parts. This is a bolt on kit with no case boring required. Comes with everything you need to install as shown. This is a 52mm bore – we also carry replacement pistons, rings, and gaskets for these kits. Bolt on some power and make your 50/70 way more fun to ride. This kit includes the TB high flow oil pump, It is recommended when installing any big bore to your 50 or 70. It saves a ton of time installing the oil pump at the same time since removing the cylinder is required to install the oil pump. Our Race Head has been updated for even more performance! It now has 25/22mm valves with better porting/flow. We also kept the combustion chamber the same size and changed the angle of the valves slightly. This will really wake up your stock engine and is comparable in power to the much larger Chinese 124cc engines!! Lightweight aluminum cylinder with steel sleeve – Cast in mounts on cylinder for aftermarket skid plates – Oversized cooling fins on cylinder for efficient heat dissipation – 52mm high compression piston with rings, pin, & clips – Head gasket kit and clutch cover gasket. High performance race camshaft (for the Race Head only). Larger valves (now 25/22mm Exhaust Valve is not Stainless) and better flow for increased performance. Also has bigger cooling fins. Includes all necessary parts and. 20mm Performance carb assembly. Includes: 20mm carb, intake, heat stop, gaskets, mounting hardware/wrench, long adjustable throttle cable, and a angled dual layer foam air filter. Honda XR70 All Years. Honda CRF70 All Years. There are no installation instructions, but if you can replace your piston, you can install this kit as the parts are installed in the same manner as the OEM parts. However, its highly recommended that a professional install this kit and make sure its tuned and jetted properly. Looking for more parts? Send us a message and we can put together a custom parts package for you! Have any questions or concerns? Please send us a message and we will gladly help with any questions you may have. We have been in the motorcycle parts industry for over a decade and are here to help.

]]> https://completepartskit.com/honda-xr50-crf50-xr70-crf70-complete-88cc-big-bore-kit-race-head-big-carb-tb/feed/ 0 https://completepartskit.com/best-raptor-700-big-bore-stroker-kit-105-5-cylinder-780c-complete-rebuild-parts/ https://completepartskit.com/best-raptor-700-big-bore-stroker-kit-105-5-cylinder-780c-complete-rebuild-parts/#comments Sat, 25 Nov 2023 17:51:47 +0000 https://completepartskit.com/best-raptor-700-big-bore-stroker-kit-105-5-cylinder-780c-complete-rebuild-parts/






Hotrods 5mm stroker crank assembly with rod. FITS MANY YAMAHA RAPTOR 700 MODELS AND YEARS. BPR 105.5mm big bore cylinder. 105.5mm Wiseco JE or CP forged big bore piston.

]]> https://completepartskit.com/best-raptor-700-big-bore-stroker-kit-105-5-cylinder-780c-complete-rebuild-parts/feed/ 0 https://completepartskit.com/03-yz250-yz-250-stock-oem-bore-cylinder-head-complete-top-end-rebuild-parts-kit/ https://completepartskit.com/03-yz250-yz-250-stock-oem-bore-cylinder-head-complete-top-end-rebuild-parts-kit/#comments Mon, 13 Nov 2023 12:23:40 +0000 https://completepartskit.com/03-yz250-yz-250-stock-oem-bore-cylinder-head-complete-top-end-rebuild-parts-kit/



FITS ALL 2003 AND NEWER YAMAHA YZ250 TWO STROKE DIRT BIKES. Cylinder to case dowel pins. MAXLOCK head stud kit. Top end gasket kit. This would be the ONLY reason your order might be slightly different when it arrives.

]]> https://completepartskit.com/03-yz250-yz-250-stock-oem-bore-cylinder-head-complete-top-end-rebuild-parts-kit/feed/ 0 https://completepartskit.com/rzr-900-xp900-cylinder-stock-standard-bore-top-end-complete-rebuild-parts-kit/ https://completepartskit.com/rzr-900-xp900-cylinder-stock-standard-bore-top-end-complete-rebuild-parts-kit/#comments Sat, 14 Oct 2023 22:35:25 +0000 https://completepartskit.com/rzr-900-xp900-cylinder-stock-standard-bore-top-end-complete-rebuild-parts-kit/




FITS ALL’ 11-14 POLARIS RZR XP 900 MODELS! NEW after market 93mm cylinder. CP JE Wiseco or Wossner forged pistons. Top end gasket kit. No modification is required to use this kit. Pistons use pump or race gas. Everything is new in the original packaging. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. DO YOU MAKE A LIVING WORKING ON BIKES? ARE YOU A SHOP OR DEALER. At BPRATV we sell parts from the best names in the industry. Unless otherwise stated, we will put the quality of the parts we sell up against any other companies’ in the industry. Also, we stock the same parts from different manufacturers so that when back orders occur like they have been for the last year we have an alternate part to send that is the same quality. This would be the ONLY reason your order might be slightly different when it arrives. If you want a certain brand part just ask (if part is back ordered this may cause a delay on your order). 99% of problems can be easily solved without returning the entire order. Once items have been modified, installed, or used in any way they are not eligible for return. Everything we sell has been tested hundreds if not thousands of times and when installed and tuned correctly they work over 99% of the time. Part failures happen, but it is rare that it is not due to being installed incorrectly. This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure everything works correctly. It requires special tools and has to be done 100% correct. Many parts must be measured down to. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic. If it can not be fixed we will supply you with a new one. Also, we want information from customers when their experience is less than desirable so we know what areas need improvement the most. Please work with us and we will ALWAYS work with you.

]]> https://completepartskit.com/rzr-900-xp900-cylinder-stock-standard-bore-top-end-complete-rebuild-parts-kit/feed/ 0 https://completepartskit.com/17-xp1000-xp-1000-cylinder-stock-bore-complete-rebuilt-top-end-rebuild-parts-kit/ https://completepartskit.com/17-xp1000-xp-1000-cylinder-stock-bore-complete-rebuilt-top-end-rebuild-parts-kit/#comments Mon, 25 Sep 2023 20:33:35 +0000 https://completepartskit.com/17-xp1000-xp-1000-cylinder-stock-bore-complete-rebuilt-top-end-rebuild-parts-kit/





17 XP1000 XP 1000 Cylinder Stock Bore Complete Rebuilt Top End Rebuild Parts Kit. FITS ALL POLARIS GENERAL AND RZR XP 1000 MODELS. NEW 93mm cylinder with locating pins. 11:1 Wiseco forged pistons. Stage One Hotcams intake and exhaust. This is a bolt-on kit with no machining required. It will work with your stock head and valves. DO YOU NEED TO HAVE THIS ITEM INSTALLED ON YOUR VEHICLE? WE HAVE YOU COVERED! We are BPRATV, offering you the best in parts and service for over 20 years. PRICES AND LISTINGS ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE. Interchangeable part: We stock the same parts from different manufacturers so that when back orders occur, we have a part that is equal in quality and cost to send, preventing what can sometimes be long waits. This would be the only reason your order might vary slightly from the description, and the part that is subbed will always be comparable quality. If you only want a specific brand, just ask and we will let you know if it is out of stock and for how long. Once a part has been installed or prepped for installation it is no longer eligible for return. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure all the parts are correct and work properly. We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic. Please work with us and we will ALWAYS work with you. No other parts nor any labor are included. We are BPRATV, and we offer a huge selection of Titanium fasteners. Once an item has been used or prepped for use with lubricants, sealant, etc. It is not eligible for return.

]]> https://completepartskit.com/17-xp1000-xp-1000-cylinder-stock-bore-complete-rebuilt-top-end-rebuild-parts-kit/feed/ 0 https://completepartskit.com/09-16-crf450r-crf-450r-big-bore-kit-100mm-cylinder-complete-top-end-parts-kit/ https://completepartskit.com/09-16-crf450r-crf-450r-big-bore-kit-100mm-cylinder-complete-top-end-parts-kit/#comments Mon, 28 Aug 2023 16:44:32 +0000 https://completepartskit.com/09-16-crf450r-crf-450r-big-bore-kit-100mm-cylinder-complete-top-end-parts-kit/






FITS ALL 09-16 HONDA CRF450R MODELS. 100mm CP JE or Wiseco forged piston. Top end gasket kit. Piston requires race gas. At bpracingatv our kits come with the same brand name parts (in many cases they are better) as other rebuild kits you see online but we always include items no one else does. We stock the exact same parts from different companies so that when back orders occur we have an alternate part to send that is the same quality. This would be the ONLY reason your order might be slightly different when it arrives. We have bulk pricing available for every item we sell. Just let us know how many you need! Please check your order completely right when you receive it and let us know immediately if there is an issue, that way we can fix it for your ASAP. Parts that do not meet these requirements are not refundable. We stand behind all parts we sell 100%. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic. Also, we appreciate your feedback to help us improve how we do business. Please work with us and we will ALWAYS work with you.

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