Top 9 XR100 Big Bore Kit – Powersports Cylinder Heads

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Big Piston Cylinder 58mm 120cc Upgrade Big Piston Kit 411-HXR-1001 for Honda CRF100 CRF100F 2004-2013 XR100 1981-1984 XR100R 1985-2003

M MATI #ad - Bigger cylinder, stronger power output. Package:cylinder 58mm x 1, piston x 1, camshaft x 1, piston pin x 1, gasket x 2, rocker Arm Assy x 2, Ring Set, valve Inner Spring x 2, valve outer spring x 2, piston x 1, piston pin x 2, Clip, Spring Retainer x 2.

Fitment: fit for honda motorcycle as following ▶ crf100f 2004-2013 ▶ xr100 1981-1984 ▶ XR100R 1985-2003. Manufacturer part # xr100 xr100r cRF100 CRF100F. 3. All parts with 100% tested, perfect replacement for your bike. Upgraded cylinder kit feature: 1. Professional installation recommended. Service: if there is any product problem within 1 year, please contact us to solve it for you. We provide product service. 58mm big bore cylinder kit, the stock increased from 100cc to 120cc. 2.
BrandM MATI #ad
ManufacturerM MATI #ad
Part NumberXR100 XR100R CRF100 CRF100F

2. MOTO1988


Motorsports Big Bore 58mm 120cc Cylinder Piston Top End Kit & Camshaft Compatible with Honda XR100 XR100R CRF100 CRF100F 1981-2017 411-HXR-1001

MOTO1988 #ad - Manufacturer part: 411-HXR-1001. Tips before purchase: please carefully check whether your model is applicable to our products before buying. You can refer to the applicable models, pictures and OEM numbers on our page to help you determine your choice.

After-sales service: if you have any questions about our products during the use and purchase process, you can contact us by email at any time, we will try our best to solve the problem for you, and we will provide comprehensive quality assurance for our products. Package: 1* cylinder, 4* valve springs, 1* cam, 2* rocker arms, 2* Piston Snap Rings, 5* Rings, 1* Gasket, 1* Piston Pin, 1* piston, 2* Valve Seats. Compatible models: for honda crf100f 2004-2009 2011-2013 xr100 1981-1984 XR100R 1985-2004.
BrandMOTO1988 #ad
ManufacturerMOTO1988 #ad
Part Number411-HXR-1001

3. 6 Sigma


6 Sigma Carb Jet Kit fits Honda CRF100 XR100 120 cc Big Bore BBR Custom Performance Stage 1-3 Carburetor Jetting

6 Sigma #ad - Increased performance at all rpm's, Faster Throttle Response, & Stops Lean Exhaust Popping that Damages Engines. Kit includes: main jets, drill bits, specifications, slide hole mod with cv carb, Slide Spring Mod with CV carb, needle adjusters, Carb Cleaning Procedure, carb Schematic, Nylon Spacers, Proper Tuning Techniques, Carb Sync Tool build, idle mixture mod, and step by step instructions with photos.

Only basic hand tools are required. The kit comes with complete instructions for installation. Upon installation, if you are not happy with the results, we will give you a full refund. We give a 100% satisfaction guarantee. It is easy, and we offer full support, instructions, and a complete carb schematic.
Brand6 Sigma #ad
Manufacturer6 Sigma #ad
Part Number6SIG11586

4. BBR Motorsports


BBR Motorsports 120cc Big Bore Kit with Cam 411-HXR-1001

BBR Motorsports #ad - Kit includes: bbr aluminum cylinder, rings, performance camshaft, piston pin, clips, heavy-duty valve springs, piston, rockers with tappet adjusters and gasket kit.
BrandBBR Motorsports #ad
ManufacturerBBR Motorsports #ad
Height1 Inches
Length11 Inches
Weight4 Pounds
Width6 Inches
Part Number411-HXR-1001

5. BBR Motorsports


BBR Motorsports 150cc Big Bore Kit with Cam 411-YTR-1201

BBR Motorsports #ad - Bores into stock cylinder. Kit includes: aluminum bbr cylinder, clips, piston pin, rings, piston, performance camshaft and gasket kit.
BrandBBR Motorsports #ad
ManufacturerBBR Motorsports #ad
Height4.6 Inches
Length10.3 Inches
Weight4.7 Pounds
Width6.2 Inches
Part Number0903-0119



GY6 Engine parts Sunl Roketa Peace, Trkimal 57.4mm 150cc Big Bore Upgrade Kits for 4 stroke 157QMJ Engines Chinese scooter moped parts, Complete GY6 Cylinder Head Rebuild Kits with valves

TRKIMAL #ad - Parts included:gy6 150cc cylinder head comp, chain adjuster, dc regulator, full set of engine gasket, spring, a7tc spark plug, set of 57.4mm piston assy, starter clutch, cover and oil seal, rings and wrist pin, Set of 14 Gram roller, oil screen, Camshaft chain 90, relay, Ignition coil, belt 835*18*30, 6pins CDI, piston, 57.

4mm bore cylinder block, valve seals, camshaft, set of Intake Manifold and Muffler Bolts, Rocker Arms, Oil Pump Assy with Driving Gear, and Exhaust locking ha, intake mani. Cylinder bore: 57. 4mm / non-egR Cylinder body. Apply to: gy6 4 stroke 125cc/150cc engine for most of chinese scooter, atv and go karts. Full sets of parts: complete parts is suitable for motorcycle maintenance shop, motorcycle parts supermarket and personal use with nice price.
BrandTRKIMAL #ad
ManufacturerTRKIMAL #ad
Weight11 Pounds
Part NumberTRKIMAL-00045-1

7. Topteng


Topteng Motorcycle Cylinder Piston Kit, Cylinder Piston Rings Top End Kit Set fits for Yamaha TTR 125 TT-R 125 LE 2000 2001 2002 2003 2004 2005

Topteng #ad - Engineered and tested to Meet or Exceed Original Equipment Standards and Performance. Cylinder is a Cast Aluminum 54. 00mm standard Bore Replacement with Steel Sleeve.

A complete top end kit is offered. Our gaskets are all top quality and will keep a perfect seal between all of the components. Please confirm the part number before ordering. Forged piston with 11:1 compression Ratio. The cylinder is cleaned, wrist pin, piston, rings, bored and honed to the specific clearances for the piston you receive in the kit. This kit is designed specifically for the diy Do It Yourself mechanic. This kit includes a cylinder, circlips and top end gaskets.
BrandTopteng #ad
ManufacturerTopteng #ad
Part NumberM587-A001~TOFBA



Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

TOP NOTCH PARTS #ad - Replaces oem part # 1uy-11310-03-00 90387-16547-00 93210-18322-00 99530-14016-00 4kb-11351-00-001uy-11181-01-00 4gb-11610-00-00 55v-11633-00-00 93450-19095-00 1uy-11631-01-y0 3gd-15451-00-001uy-13440-02-00 1uy-14451-01-00 Teflon coated side and ceramic top piston. Upgraded metal gaskets. Upgrade your stock warrior with this kit. 12:1 compression ratio. Adult signiture required for delivery. Includes complete rebuild gasket kit. Includes all as shown in the picture to complete your rebuild. 12:1 big bore 366cc cylinder Kit For 1987-2004.
ManufacturerTOP NOTCH PARTS LLC #ad
Part NumberTNP-3JJ6666

9. hongyu


Hongyu 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

hongyu #ad - For your quick use of new accessories, please consult the picture information and product description before purchasing. Head valve length 69mm, not 64mm. Cylinder bore Diameter : 50mm. Kit includes: cylinder head, cylinder block assembly, intake pipe screw, exhaust pipe nut, exhaust pipe screw, exhaust pipe gasket four locating pins. Fit gy6 50cc to 100cc 139qa 139QMB Engine.
Brandhongyu #ad
ManufacturerHY #ad
Part Number50