Home » #276 SR400

#276 SR400

2023.4.25

Custom Bike

CHOPPER Show Model SR SR400/500 Hardtail

#276 SR400Custom Report

● A full custom SR400 was ordered by a Tokyo owner, asking for a show-level finish equivalent to “No. 209 SR400“. We proceeded with meetings using LINE photos and videos, ZOOM, etc., and when the main skeleton such as the hardtail frame, gas tank, fork extension, and front wheel 21-inch conversion was completed, the owner came to the store and decided on the step and seat position, handlebar height and angle, etc. that fit the owner’s physique while actually straddling it.

The exterior paint was requested from “Kyoto P,H,K“, and the frame was painted with a metal paint called IZ Metal from ROHAN. The gas tank and rear fender were finished with chrome plating and then faded.

The front and rear wheel hubs are changed to chrome-plated rims with a metallic powder coat, front 21, rear wide 18 inches. The engine was overhauled around the waist and clutch, and then finished cleanly with cerakote, powder coat, and buffing.

The shift is a jockey shift that makes operating the bike fun, a step that works well with the owner’s physique even without a rear shock, a 2-inch spring mount seat with good cushioning, and a handlebar in a natural reach position for less fatigue. The change to the FCR carburetor has made the ride several times more enjoyable than the original carburetor. It’s a full custom.

【Detailed Introduction Video】

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【Driving Video】

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“JOINTS OLD & CHOPPER DNA 2023 / SR Panic Exhibited Vehicles“

“Click here for the №290 SR400 that became the image sample”

【The sample car based on the STD Hardtail Complete is here】

【Over 90 Hardtail production examples are here】

Custom List

FrontHandlebars, F forks, headlights, etc.

●The front fork is extended by 10cm for the 21-inch hole, with a headlight that suits the SR’s vehicle size, a one-off handle, etc., for a chopper-like front area. The shift is a jockey, so there is no clutch lever, resulting in a clean finish around the handle.

【Front Fork】

“100mm Fork Joint”

〇High-quality stainless steel fork extension kit

【Front Wheel】

“SR400/500 21inch kit for front“

〇A wheel kit that results in a narrow, large-diameter, sharp style.

“2%er Front Wheel Aluminum Hub Cap [SR400/500]“

〇You can change to a classical style by attaching it to a normal drum brake.

【Handle/Handle Area】

“Custom Handle”

〇A stainless steel straight handle tailored to the owner’s physique.

“Standard Aluminum Brake Lever Set”

〇A custom lever set with a holder and lever.

“Chopper Grip Black 22.2mm 7/8inch“

“Amal type throttle holder, general purpose (for 7/8″)“

“Amal type slot wire 900mm ’88~’08“

“100mm Long Brake Cable”

〇The handle is custom-made. It’s a narrow straight handle. Long cables are used for the simple throttle.

“Handle Lock Weld On Kit“

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“

〇An engine-mounted decompression lever that simplifies the handle area.

【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.

(It is installed with modifications for different model years and small headlights)

【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.

“Bottom Mount Light Stay II“

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)

【Front Blinker】

“Micro Blinker” (Discontinued ⇒ Now changed to Star Bean Blinkers, Set of 2, Black)

“Universal Blinker Stay 10A Type Steel”

〇The ultra-small micro blinker is installed on the front side of the lower part of the engine mount.

【Speedometer】

“Mechanical Speedometer 60mm Black Panel 1:4“

“Universal Speedometer Stay“

〇Mounted on the less noticeable and highly visible left front side of the gasoline tank.

↓(We now also have this more convenient bolt-on kit available)

【Left Side Meter Kit for Small Tanks】

〇A kit that allows you to bolt-on a 60φ meter to a less noticeable and highly visible location when replacing with a small tank such as a sports tank.

CenterTank, oil tank, seat, step, muffler etc.

● The peanut tank, which has been narrowed, is high-mounted at the perfect height to hide the thick main tube of the SR. The pillion pad is a dress-up specification that allows you to choose between two positions: one for holding during acceleration when riding alone, and the other for tandem position, all with just one tool. The jockey shift, which has been meticulously designed for stroke and weight, offers excellent operability. It is set up with an FCR carburetor for sharp acceleration and a drag pipe muffler.

【Muffler】

“Torque cone drag pipe muffler SR400/500“

It is a full exhaust muffler with a torque cone that we developed independently in the mouthpiece. It is made at an angle that suits any style, such as a normal frame or hardtail.

【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 operation feel such as touch and stroke. (The shift knob has been changed)

【Carburetor】

“FCR carburetor 39φ SR400/500 single unit“

〇Your slow SR will drastically change. 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 a stainless steel trash net and an aluminum funnel, which is a change from the red plastic funnel.

“Manifold Kit for FCR39φ”

〇This is a dedicated adapter to firmly fix the FCR carburetor to the SR400/500.

【Seat】

“BATES Type Genuine Leather Solo Saddle Seat Vertical Tuck Roll Black/White“

〇A genuine leather solo saddle seat with a balance of price, looks, and comfort. It is installed with a soft ride that is hard to bottom out by changing the mounting angle and spring input position.

(Discontinued) ⇒Genuine Leather STD Solo Saddle Seat Black

“Solo Saddle Seat 2 Inch Spring Comfort Mount Set”

〇A mount kit that is easy to install on custom frames and the like. You can also change the lever ratio and create a good cushioning effect.

“BATES Type Genuine Leather Pillion Pad”

〇For tandem, it is installed in a position that becomes a stopper for the upper body weight during acceleration, with 2WAY attachment. You can change the position with a single minus screwdriver.

(Discontinued) ⇒Genuine Leather STD Solo Saddle Seat/Pillion Pad Set

【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 when returning to the swing arm specification during vehicle inspection.

“Custom IG Switch Bolt-On Kit”

〇This is a kit to bolt-on a small ignition at any location.

“Battery Lesser“

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 difficulty even with LED turn signals. It can also be used as a replacement for the original relay.

【Engine】

【Engine Upper/Crankcase Clutch O/H】

This is an engine that has been disassembled and inspected, and finished with a clean appearance using Cerakote, powder coating, and buffing during the O/H.

【Gasoline Tank Installation】

“Peanut Tank”

〇A peanut tank that has been narrowed down to a width of 20mm. It is installed with a safe 3-point rubber mount.

“Welding nut non-through M8 2p“

〇Drill a hole in the gasoline tank body and insert and weld it. It is non-penetrating, so it does not 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. This also enlarges the hole diameter and uses it with a rubber mount.

【Drive System】

“Front sprocket SR400/500 428-19“

〇A durable replacement sprocket made of steel.

【Engine Area】

“Breather filter SR400/500“

〇This is a filter kit needed when removing the original air cleaner.

RearFenders, rear shocks, swingarms, etc.

●This is the rear area with a chrome-plated 18-inch wide rim repurposed from a discontinued car model, a 5-inch rib fender, and a stainless steel sissy bar.

【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 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. It is said that the rear fender of the SR custom will crack, but we have safely mounted it with 6 points by applying effective reinforcement based on the thick and sturdy rear fender material.

【Rear Tire】

“Chrome Plated Wide Rim”