#198 SR400Custom Report
This is a vintage-style bobber ordered from Fukui Prefecture, brought in with a normal vehicle. We used parts as per the owner’s wishes in various places, and assembled it while balancing the overall layout. The aging finish of the entire vehicle, from the exterior, was entrusted to “BACON“, which receives support from all over the world, adding a worn-out atmosphere,
With the front 74 Springer, a setup of front 21 rear 16 inch wheels, bolt-on hardtail kit, jockey shift, and one-off production of exterior parts, we finished a full custom SR400.
(For the process of bringing in the vehicle, frame modification, and exterior design meetings, click here)
(For the blog post about the process of making handles and mufflers, click here)
【Introduction to Customization Video】

【Video of Driving and Entire Vehicle】

【For Detailed Introduction and Explanation Video, Click Here】

Custom List
FrontHandlebars, F forks, headlights, etc.
【Front Fork】
“74 Springer Fork/2 Inch Over”
◯The brake panel is set to sink smoothly during braking due to the floating processing and improved torque rod mounting angle.
“Drum Brake Panel for 74 Springer”
〇A brake panel with floating processing necessary to sink the front fork during braking.
【Front Wheel】
“SR400/500 21inch kit for front“
〇A wheel kit that results in a narrow, large-diameter, sharp style.
【Headlight】
“5.75 inch Old Bates Type Side Mount Headlight #5.75 inch headlight #General-purpose parts“
“74 Springer Fork Side Mount Light Stay“
◯We have launched a product of a flat plate design light stay, which is bent for this vehicle, imitating the mounting method often seen in choppers of the time. (It will be released soon as a kit for ’74 Springer forks)
【Handle/Handle Area】
◯We made it according to the owner’s preferred shape and physique while straddling. It’s a one-off production that combines stylishness, ease of operation, and less fatigue.
◯The brake lever is a replica for old Harley. We attached a one-off wire adapter to the brake panel side so that the brake cable for SR400 can be attached without any modification.
◯We also used a small throttle for Harley.
〇Install a new handle lock on the lower part of the under bracket.
“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 Bullet Turn Signal Chrome 4pcs SET General Purpose“
〇A classic among classics. A chopper-style blinker.
“SR400/500 Bottom Mount narrow blinker stay“
〇A stay to attach a 10mm blinker to the bottom of the frame.
【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.
CenterTank, oil tank, seat, step, muffler etc.
【Muffler】
“Exhaust Pipe Flange Set for One-off Pipe Production”
〇A shotgun made one-off using a convenient production kit for the root mouthpiece. It is wrapped in black bandage to prevent burns.
【Step/Shift】
“Mid-High Jockey Shift Kit/Parkarize”
〇Maintaining the comfortable riding posture of the mid-high step, this is a jockey shift kit that focuses on operation feel such as touch and stroke.
【Seat】
“Vintage Bates Replica Solo/Pillion Seat with Real Aging“
◯ A seat with a unique atmosphere, made with a base plate of the same shape as the real BATES seat and finished with aging leather. By adopting a 2-inch spring and setting the pillion pad attachment position to hold a little above the tailbone, it becomes remarkably easy to ride and less tiring.
“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 easy to maintain as it can be accessed with both hands from either side of the vehicle, and there is no need to reassemble even when returning to the swing arm specification for vehicle inspection.
〇This is a battery-less kit made entirely in Japan.
“IC blinker relay wide range specification“
〇A wide-range turn signal relay that can handle 1-150 watts and can be used without any problem with LED turn signals. It can also be used as a replacement for the original relay.
“Custom Ignition Switch Weld On Kit General Purpose“
〇The main key, which is originally attached to the top bridge, is welded to the lower left of the seat for easy operation even while riding.
【Gasoline Tank Installation】
“Narrow Mustang”
〇The rear part is reshaped and installed so as not to make the gap with the frame noticeable.
“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 the front side.
“Weld tab M size 4.5mm thickness 2p“
〇The hole diameter is enlarged and changed to a rubber mount specification to hold the non-penetrating nut.
“Weld tab L size 4.5mm thick steel 2p“
〇Used for the rear installation of the gas tank. Here too, the hole diameter is enlarged and used with a rubber mount.
【Kick Pedal】
◯It is used as a heat shield replacement.
【Engine Area】
〇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』(13cm long, made to order)
〇As the name suggests, this is 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 to a swing arm/rear shock specification when you need to change the style or during vehicle inspection.
【Rear Wheel】
“16″ Kit Steel Spoke SR400/500 Rear“
〇This is a kit that gives a powerful look with the same size as a typical Harley.
〇A classic vintage style tire.
“Drilled plate torque rod SR400/500“
〇A drilled design torque rod to avoid interference with the wider tire.
【Rear Fender】
“5-Inch Custom Rib Fender – Steel Material“
“Reinforcement Back Plate for 5-Inch Rib Fender“
〇A rib fender with thickness and high durability. We have added a reinforcement plate around the mounting holes to mount it even more robustly. Based on the thick and sturdy rear fender material, we have effectively reinforced it and safely mounted it with a 6-point mount.
【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.
【Sissy Bar】
◯The Sissy Bar is a one-off made using a square bar and a hexagonal bar. It is a chrome-plated finish with a shape that arranges the design of the fork from the good old days.
【Tail Lamp】
“Lucas Large Tail Aluminum Number Base Set General Purpose“
◯We have installed the classic Lucas tail on the back.
【Drive System】
“Rear sprocket SR400/500 428-56“
〇A durable sprocket made of steel.
※Parts Reference may show similar products or products with additional processing.