#108 SR400Custom Report
Rigid SR with a bolt-on hardtail specification.
Based on the “STD Hardtail Complete“, with many options such as fork extension, one-off sissy bar, and front and rear cast wheel customization, it’s a custom that swings even more towards a chopper style.
We based it on a 2008 model, a model with an immobilizer that is difficult to customize, and created a simple, orthodox chopper style as much as possible.
The “bolt-on hardtail” of the rear section is, as the name suggests, removable with bolts/nuts, so you can easily revert to a swingarm specification and clear the vehicle inspection without worry.
【Detailed Introduction】



Custom List
FrontHandlebars, F forks, headlights, etc.
【Front Fork Area】
“2%er 15cm long Joints for Front Fork (pair) [SR400/500]“
〇High-quality stainless steel fork joint.
【Front Wheel】
◯ Y’S Gear Cast Wheel. Even with an extended fork, it’s easy to ride with 18-inch and narrow tires.
【Headlight】
〇A bright H4 bulb headlight with a visor. It is installed by relocating the main key for older vehicles with a large main key.
【Handle, Around the Handle】
“Amal type throttle holder, general purpose (for 7/8″)“
“Amal type slot wire 1200mm ’88~’08“
◯The controls are neatly finished with mini switches, etc.
【Switch】
“Mini Turn Signal Switch Coupler On Kit (’85~00)”
〇Easy to install mini turn signal switch with coupler on
〇It is newly installed by welding to the lower part of the stem, which is inconspicuous and easy to operate.
“MOTOR ROCK Decompression lever“
A decompression lever directly attached to the engine to simplify the area around the handle. (The one on the vehicle is an old model)
【Front Blinker】
“Small Bullet Turn Signal Chrome 4pcs SET General Purpose“
〇A classic among classics. A chopper-style blinker.
【Speedometer】
“Mechanical Speedometer 60mm Black Panel 1:4“
〇Mounted on the left front side of the gasoline tank where it is inconspicuous and highly visible.
〇Used when extending the fork or relocating the meter.
CenterTank, oil tank, seat, step, muffler etc.
【Muffler】
◯The exhaust pipe was installed by adjusting the angle of the one brought in by the owner.
【Carburetor】
◯YOSHIMURA-FCR Carburetor. It starts easily, is easy to handle, and is fast. This is a high-performance carburetor that makes SR more enjoyable.
〇This is a dedicated adapter to firmly fix the FCR carburetor to the SR400/500.
“Net funnel set for FCR carburetor“
〇This is a set of an aluminum funnel, changed from a red plastic funnel, and a stainless steel debris prevention net.
【Seat】
◯Seats brought in by customers are installed in a comfortable position by processing the iron plate of the base board.
【Electrical】
◯ Many electrical components and wiring, which can be a problem when customizing high-year SRs, are concentrated under the seat. We have compactly organized them considering future maintenance.
“IC blinker relay wide range specification“
〇A wide-range blinker relay that can handle 1-150 watts without any problem even with LED blinkers. It can also be used as a replacement for the original relay.
〇This is a battery-less kit that we manufacture in Japan.
【Gasoline Tank Installation】
“Narrow Sportster Tank for Production”
“Welding nut non-through M8 2p“
〇Drill a hole in the gasoline tank body and weld it in. It’s non-penetrating, so it won’t leak. Used on both sides.
“Weld tab M size 4.5mm thickness 2p“
〇Enlarge the hole diameter and change to a rubber mount specification to hold the non-penetrating nut. Used on both sides.
“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 as a rubber mount.
【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 make it a rigid line. You can revert it back to the swingarm/rear shock specification during vehicle inspection or when changing styles.
【Rear Wheel】
◯The wheel is Y’S Cast 18 inch, and the tire is a Goodyear replica. It’s a standard for the chopper style.
【Rear Fender】
〇A classic, simple flat rear fender.
【Tail Lamp】
“Spalt Tail Lamp Polished Japanese Standard Number Size“
◯This is a set of the standard Sparto tail lamp and a conversion plate of Japanese standard number size.
【Rear Blinker】
“Small Bullet Turn Signal Chrome 4pcs SET General Purpose“
〇A classic among classics. A chopper-style blinker.
“Weld tab S size 4.5mm thick steel 2p“
〇Welded onto a hardtail. Used as a blinker base.
【Drive System】
“Rear sprocket SR400/500 428-56“
〇An affordable and durable replacement sprocket.
※Parts Reference may show similar products or products with additional processing.