#118 SR500Custom Report
This is a vintage racer style made based on SR500.
Without deciding on a particular motif, I mixed styles such as bobber/tracker/sand racer
and built it to have a balanced, solid atmosphere like a racer.
It is finished with a large gas tank and a wide seat with long springs for the owner who travels long distances.
Instead of choosing large block pattern tires, I selected tires that have a good atmosphere and can handle roads,
and city riding (somehow) for the sake of running.
It’s a 2%ER vintage style that can run comfortably without any negative breakdowns.
The hardtail of the rear section is a bolt-on specification.
If you’re worried about vehicle inspection, you can easily pass by just replacing the swing arm.


〇 ” Click here for related blog articles ”
〇 ” Click here for the blog where I customized the area around the headlight afterwards ”
〇 ” Click here for THE SR TIMES related essay ”
〇 ” Click here for the article published in WEB magazine Custom Front ”
Custom List
FrontHandlebars, F forks, headlights, etc.
【Front Wheel】
◯ A front hub that reuses the small diameter drum of the old Yamaha. Converted to a 19-inch H-type aluminum rim. The tire is ALLSTATE Dirtman. I aimed for a dirt-like atmosphere.
【Headlight】
“Old Bates Type Side Mount Light Kit SR400/500 XS650“
◯Reproduced for SR & XS from the 60s vintage mold. Not only for choppers, but it also suits this kind of style well.
【Handle/Handle Area】
“Old Racer Bar Handle 7/8” (22.2mm)“
◯ A top bridge that lowers the handle mounting position by 2cm to smartly shape the silhouette of the entire vehicle. It is used after shaping the cut-out form.
“Amal type throttle holder, general purpose (for 7/8″)“
“Amal type slot wire 1100mm ’88~’08“
“Chrome British Car Type Clutch Lever“
“Chrome British Car Type Brake Lever“
〇 We are using each long cable for the simple throttle.
【Switch】
“Mini Turn Signal Switch Coupler On Kit (’85~00)”
〇Easy to install mini turn signal switch with coupler on
“MOTOR ROCK Decompression lever“
A decompression lever directly attached to the engine to simplify the handle area. (The one on the vehicle is an old model)
【Front Blinker】
“Small Rubber Winker Smoke Set of 4“
【Speedometer】
” Inside meter kit for drum brake SR400/500 #2%er Original #SR400/500“
◯ It’s a speedometer kit that doesn’t stand out and doesn’t ruin the style, but has good visibility while riding.
CenterTank, oil tank, seat, step, muffler etc.
【Muffler】
“Exhaust Pipe Flange Set for One-off Pipe Production”
〇A straight pipe with a left outlet was made one-off using a convenient production kit for the root mouthpiece.
【Step】
“Mid-High Control Parkerized for SR400/500“
〇This step kit is essential for 2%ER’s custom, which makes your riding posture cool and significantly reduces fatigue.
【Carburetor】
◯ The carburetor is FCR. It’s incredibly fast with an engine souped up to 525cc.
“FCR carburetor 39φ SR400/500 single unit“
〇 The slow SR’s performance will drastically change. It’s a high-performance carburetor with sharp and smooth acceleration and good startability.
〇 It’s a dedicated adapter to firmly fix the FCR carburetor to the SR400/500.
“Net funnel set for FCR carburetor“
〇 It’s a set of an aluminum funnel replacing the red plastic one, and a stainless steel debris prevention net.
【Seat】
◯ A simple vertical tuck roll seat. It is comfortable even for long distances with our mid-high step and 3-inch seat spring combination.
“Welding nut non-through M8 2p“
〇 Used on the frame side as a seat spring receiver.
【Electrical】
“SR400/500 Custom Electrical Plate #2%er Original #SR400/500“
〇All electrical components except the CDI are consolidated at the rear of the engine crankcase. It is easily accessible from either side of the vehicle and has good maintainability. There is no need to reassemble even if you return to the swing arm specification during vehicle inspection.
“IC blinker relay wide range specification“
〇A wide-range turn signal relay that can be used without difficulty even with LED turn signals. It supports 1 to 150 watts and can also be used as a repro for the original relay.
〇This is a battery-less kit that we manufacture in Japan.
“Custom ignition switch bolt-on kit General-purpose“
〇The main key, which is originally attached to the top bridge, is installed on the lower right of the seat for easy operation even while riding.
【Gasoline Tank Installation】
◯ The gas tank is a narrowed version of the Royal Enfield’s, installed using a special stainless welding rod, which prevents rust and ensures long-term use.
“Welding nut non-through M8 2p“
〇 Drill a hole in the gasoline tank body, insert and weld. It’s non-penetrating, so it won’t leak. Used on the front side.
“Weld tab M size 4.5mm thickness 2p“
〇 Enlarge the hole diameter, change to a rubber mount specification, and hold the non-penetrating nut.
“Weld tab L size 4.5mm thick steel 2p“
〇 Used for the rear installation of the gas tank. This also enlarges the hole diameter and uses it with a rubber mount.
【Side Stand】
◯The side stand was reused from Triumph.
【Engine Area】
〇This is a filter kit needed when removing the original air cleaner.
【Drive System】
“Front sprocket SR400/500 428-19“
〇A durable replacement sprocket made of steel.
RearFenders, rear shocks, swingarms, etc.
【Hardtail】
『“Rigid Line” Bolt-On Hardtail Kit』(5cm Long)
〇As the name suggests, it’s a detachable hardtail kit using bolts/nuts. It remodels the seat rail of the original frame to a rigid line. You can revert to a swing arm/rear shock specification during vehicle inspection or when changing styles.
【Rear Wheel】
“H aluminum rim SR rear, one size up“
◯2.50−18 One size up in width. Gives a racer atmosphere.
“Drilled plate torque rod SR400/500“
〇A drilled design torque rod to avoid interference with the wider tires.
【Rear Fender】
◯The rear fender is a repurposed spare tire cover for a 20’s Ford. It’s a classic style for 60’s choppers and bobbers. This SR500 is mounted in a way that gives a sense of gap and lightness. The fender has been carefully repaired and used with solid reinforcement on the back. The fender brace is made in a rigid style. The aging paint is by ‘BACON‘.
【Tail Lamp】
◯We have selected a chrome-plated Crocker tail.
【RearTurn Signal】
“Small Rubber Winker Smoke Set of 4“
“Weld tab S size 4.5mm thick steel 2p“
〇Welded onto the hardtail. Used as a base for the turn signal.
【Drive System】
“Rear sprocket SR400/500 428-56“
〇A durable sprocket made of steel.
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