#299 SR400Custom Report
This is an SR400 B-class chopper style, fully bolt-on ordered from Ibaraki Prefecture.
Without touching the original frame at all, we created a silhouette with our original parts, extending the long fork by 37.5cm, lowering the rear suspension, and converting the rear wheel to 16 inches.
While using standard chopper style parts such as the new Frisco fender kit, the robot handle scheduled for release in 2024, sissy bars, and drag pipe mufflers,
We enhanced the ride with a mid-high position jockey shift that makes the riding posture cool and less tiring, and an FCR carburetor.
This is a fully custom SR400 chopper with a normal frame, made more chopper-like with a one-off peanut tank and high-back seat, adjusted in width and length to match the SR’s vehicle size and frame shape.
The aging paint of the gas tank was requested to “BACON”.
◎『Check out other 2%ER’s custom SR400/500 without frame modifications here』

Custom List
FrontHandlebars, F forks, headlights, etc.
●The front area emphasizes the chopper-like features, with a standard 37.5cm long front fork, a headlight, and an easy-to-handle robot handle that maintains the silhouette of the old school design with attention to width and angle.
【Front Fork】
〇A fork tube kit that allows you to extend the front more safely.
〇High-strength stainless steel long fork joint.
“2%er Tweak Bar (front stabilizer) [SR 400/500]“
〇A stabilizer that is extremely effective in correcting the handling that tends to lag behind the extended fork.
〇A very simple dust seal. It can also be used as a replacement for the original fork boots that become unusable when the fork is lengthened.
“Welding Side Stand Extension Plate”
〇A plate for extending the side stand that leans too much when the fork is extended. Welding is required.
【Front Wheel】
“2%er Short Front Fender STD [SR400/500]“
〇A short fender that suits any style. Despite being made of FRP, it has a design with ribs around the perimeter like the original.
〇A street tire with a vertical groove design. It helps to lighten the handling that tends to become heavy when the fork is lengthened. It is a small diameter size with a round 3.00 size.
【Headlight】
5.75 inch Bates Light Chrome General Purpose
〇A headlight that fits well with the SR’s vehicle size and fork width, and can be installed without any discomfort.
〇A headlight stay that fits well with the chopper style due to its moderate height and protrusion. (5.75 inch Bates Light Set II SR400/SR500)
【Handle/Handle Area】
“STD Robot Handle (Prototype, to be released in 2024)”
〇Commonly known as the Z-bar or robot handle. We launched it with an old-school standard silhouette unique to 2%ER.
“※NOS Throttle”
〇A simple throttle from the 60’s dead stock (※A little modification of the drum is necessary for the Amal throttle dedicated wire, it fits the FCR carburetor).
※We usually use this product.
“Amal type throttle holder, general purpose (for 7/8″)“
◯Controls such as switches are simplified using small ones. It’s a standard menu of 2%ER.
“Amal type slot wire 900mm ’88~’08“
〇Iron cross design, clamp mirror with a chopper-like design.
【Clean Handling Around the Switch】
“Mini Turn Signal Switch Coupler On Kit (’85~00)”
〇A mini turn signal switch that is easy to install with a coupler on.
(Different model years, installed with modifications on small headlights)
“MOTOR ROCK Decompression lever“
〇An engine-mounted decompression lever to simplify the area around the handle.
【Turn Signal】
『Small Bullet Turn Signal Chrome 4pcs SET General Purpose』
〇A classic among classics. A chopper-style turn signal.
『SR400/500 Bottom Mount narrow blinker stay』
〇A stay to attach a 10mm turn signal to the bottom of the frame.
【Meter】
【Small Tank Left Side Meter Kit】
〇A kit that allows you to attach a 60φ meter to a less noticeable location with good visibility when replacing with a small tank such as a sports tank, completely bolt-on.
CenterTank, oil tank, seat, step, muffler etc.
● Pursuing the fatigue resistance of the 2%ER flow, we have the mid-high jockey shift kit, enhanced running with the sharp acceleration of the FCR carburetor,
Simple drag pipe mufflers and other 2%ER standard menu items,
Exterior parts such as a peanut tank that is 1cm narrower and 20mm longer to fit the frame shape of the SR, and a high-back seat specified by the owner.
The worn-out paint is “BACON”.
【Muffler】
“Torque cone drag pipe muffler SR400/500“
〇This is a full exhaust muffler with a torque cone that we developed in-house built into the mouthpiece.
【Step/Shift】
“Mid-High Jockey Shift Kit Chrome for SR400/500“
〇Maintaining the comfortable riding posture of the mid-high step, this is a jockey shift kit that focuses on touch and stroke operation. (The shift knob has been changed)
【Carburetor】
“FCR carburetor 39φ SR400/500 single unit“
〇Your slow SR will be dramatically transformed. It’s a carburetor that’s easy to handle with sharp and smooth acceleration.
“Net funnel set for FCR carburetor“
〇This is a set of an aluminum funnel to replace the red plastic one, and a stainless steel trash prevention net.
〇This is a dedicated adapter to firmly fix the FCR carburetor to the SR400/500.
【Gasoline Tank】
“One-off Peanut Tank”
〇A peanut tank that is 1cm narrower and 2cm longer to match the SR’s vehicle size and frame shape. It is mounted with a 3-point rubber mount.
【Seat】
“One-off High Back Cobra Seat”
〇A one-off seat with a diamond and vertical tuck roll design, made according to the owner’s request.
【Electrical Equipment】
〇A simple electrical plate that makes it easy to organize harnesses and electrical components.
“IC blinker relay wide range specification“
〇A wide-range blinker relay that can handle 1-150 watts and can be used without difficulty 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.
【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.
●Among the lowered suspension, the selection of a good moving shock and the rear wheel 16-inch conversion, these are also the standard menu of 2%ER, combined with the Frisco fender of the old school chopper design and the FORK sissy bar around the rear.
【Rear Shock】
〇A rear shock that lowers by about 4cm. It moves well among low-down suspensions. (Removal of the original chain case is necessary)
【Rear Fender】
〇A Frisco fender kit that can be installed well-balanced regardless of long forks or normal forks.
“Number Plate Reinforcement Aluminum Back Plate”
〇An aluminum reinforcement plate to prevent the number plate from breaking due to vibration or impact.
【Sissy Bar】
“FORK Hole Type Sissy Bar Bolt-On Kit”
〇This is a sissy bar kit with an old-school design, holes in the side plates, and easy-to-attach cargo hooks.
【Rear Wheel】
『16″ Kit Steel Spoke SR400/500 Rear』
〇This is a kit that gives a powerful look, the same size as a typical Harley.
〇A classic vintage style tire.
『Drilled plate torque rod SR400/500』
〇This is a drilled design torque rod to avoid interference with the wider tire.
【Rear Blinker】
“Small Bullet Turn Signal Chrome 4pcs SET General Purpose“
〇A classic among classics. A chopper-style blinker.
“Rear Bottom Mount Blinker Stay”
〇A stay for attaching the blinker to the swing arm.
“Rear sprocket SR400/500 428-56“
〇A durable sprocket made of steel.
〇A replacement drive chain with built-in O-rings.
※Parts Reference may show similar products or products with additional processing.