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Top 10 JIMS products – best-selling models in 2026!
Ranking updated: 1 January 2026'
Discover JIMS’s best-selling products. Top 10 hits loved by motorcyclists – see which models are number one in 2025!
Top 10 products
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1. TRANSMISSION REBUILD KIT 4-SPEED
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General description
Includes all the necessary gaskets, seals, locks and bearings needed to completely rebuild a 4-, 5-, or 6-speed transmission
4-speed rebuild kit also includes a shift shaft and crankshaft, but does not include bearings
Made in the U.S.A.
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2. 5-SPEED TRANSMISSION MASTER REBUILD KIT
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General description
Includes bearings, retaining rings, spacers, locknuts, gaskets and seals
Made in the U.S.A.
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3. 5-SPEED TRANSMISSION MASTER REBUILD KIT
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General description
Includes all the necessary gaskets, seals, locks and bearings needed to completely rebuild a 5-, or 6-speed transmission
Made in the U.S.A.
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4. 5 OR 6-SPEED TRANSMISSION MASTER REBUILD KIT
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General description
Includes all the necessary gaskets, seals, locks and bearings needed to completely rebuild a 5-, or 6-speed transmission
Made in the U.S.A.
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5. BILLET OIL PUMP FLOW PRO 1 BLACK
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General description
Oil pump increases horsepower by decreasing drag on the flywheels and other rotating parts
CNC-machined to exact tolerances for the most durable, strong and wear-resistant performance
Feed and return gears are individually matched to each body
Increases oil return volume over stock pumps
OEM-type black wrinkle finish
Cover not included
Pump only, no hardware
Includes pump body, gears, shaft and plugs
Made in the U.S.A.
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6. TAPPET ROLLER KIT
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General description
Made from 52100 bearing material
Includes 4340 chromoly axle
Made in the U.S.A.
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7. SPROCKET SHAFT SPACER KIT
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General description
Spacers are machined to a 32-micron, burr-free finish for extended seal life
Made to fit the sprocket shaft oil seal
Eight-piece kit contains one of each of the following sizes: .336, .621, .516, .546, .574, .606, .636, .666
Made in the U.S.A.
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8. ROCKER ARM BUSHINGS
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General description
Quality, American-made rocker arm shafts and bushings
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9. SHAFT ROCKER ARM KT M8
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General description
In an effort to perfect Milwaukee-Eight® engine valve train geometry, while improving durability, JIMS® has developed performance rocker shafts and proprietary hardware
The rocker arm shafts are precision machined from a low alloy nickel, chromium, molybdenum case hardened steel. The hardware flats on the end of the shafts are held to a .0005” parallel tolerance, assuring the rocker is seated in the correct position with the pushrod cup & valve stem tip when installed correctly
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10. VALVE LOCK KEYS
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General description
Made from the highest grade materials and heat-treated to JIMS strict standards
Feature a 10° lock angle
Work well with JIMS titanium valve spring retainers
Made in the U.S.A.
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