Home » #328 SR400

#328 SR400

2024.11.29

Custom Bike

#328 SR400Custom Report

We have created a super narrow SR400 chopper.

Ordered by an owner from Mie Prefecture who was very fond of the previously created “No. 278 SR400“,

in response to the request to “make it slim and tight”,

this is a full custom made even narrower than this No. 278.

We prepared an 18cm long hardtail to match the large owner,

and from the top of that hardtail, we drastically narrowed the frame under the seat, and with the adoption of a one-off 2° rake 5cm narrow triple tree,

we achieved good handling and made it unprecedentedly slim.

Explanation of handling by rake tree

By raking the front fork 2° in relation to the neck angle of the vehicle body tilted by the long fork and rear lowering,

we have adjusted the extended trail value (heavy handling) to be shorter (handling becomes lighter) and made it easier to ride.

The fact that the front fork tilts further, creating a more chopper-like silhouette, is also a feature.

The narrowest triple tree width ever made in 2%ER history.

The area around the seat rail, which has become unprecedentedly slim by bending the upper part of the hardtail kit inward.

We adopted a simple no-brake 18-inch spool hub wheel,

and attached two calipers to the rear wheel.

Without the front brake, it becomes an extremely simple chopper-like overall silhouette.

We operate one caliper with the hand brake lever and the other with the foot brake pedal,

achieving both simple styling and safety. (Two brake masters are mounted on the rear of the engine)

We added molding to the frame, tank, rear fender, etc., and asked our old friend in Kyoto, “P.H.K“, to do the painting.

● “No. 278 SR400 that the owner referred to”

Custom List

FrontHandlebars, F forks, headlights, etc.

●The front fork, which has been extended to 37.5cm with a long inner tube and fork joint, is 5cm narrower than the original for improved styling and handling, and is set with a 2° rake triple tree.

The handle area is extremely simple due to the use of a rear double caliper and jockey shift.

【Front Fork】

“Super Narrow Triple Tree”

〇A one-off triple tree made of chrome-plated steel with a fork mounting width narrowed by 5cm and a 2° rake angle.

“20cm Long Inner Tube”￥68,200

〇A fork tube kit that allows you to extend the front more safely.

“175mm Long Fork Joint”￥20,460

〇High-strength stainless steel long fork joint.

“Fork Outer”

〇Fork outer finished with chrome plating after cutting off all steel types and smoothing.

“Front Fork Dust Seal”￥2,400

〇A very simple dust seal. It can also be used as a replacement for the original fork boots that can’t be used when extending the fork.

“Welding Side Stand Extension Plate”￥3,200

〇A plate to extend the side stand that leans too much when the fork is extended. Welding is required.

【Front Wheel】

“18 Inch Spool Hub Wheel”

〇Original 18-inch spool wheel.

“KENDA 2.75-18 Tire”

〇A narrow vertical groove tire that we started handling to match the extremely narrowed triple tree.

【Headlight】

“4.5 Inch Bates Light”

〇A small Bates light with enough brightness to pass inspection. It is mounted with a one-off stay.

【Handle, Handle Area】

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

● A one-off narrow sportster tank with ribs is mounted in the best position, and sheet metal and bond molding are added to the frame before and after the tank.

The brake master is mounted in a two-row configuration for the hand brake and foot brake, with a small custom master behind the engine crankcase, pulled by a wire from the brake lever.

The solo seat and pillion pad with backrest, which were decided while the owner was straddling, are both good for riding posture and fatigue resistance with a mid-high step.

【Engine】

〇 The engine has been overhauled internally, with chrome plating on the covers and a cerakote finish on the cylinders.

【Gasoline Tank】

“One-off Narrow Sportster Tank”

〇 A one-off gasoline tank with ribs added to the shoulder and a special three-dimensional paint applied to the side panels.

【Molding】

RearFenders, rear shocks, swingarms, etc.

●The industry’s first normal hub modified disc brake kit. This is a specification where the calipers are installed in double and the handbrake can also be used in order to make the front area extremely simple, like a chopper that does not arrange brakes around the front.

The center rib fender is mounted with a safe 6-point mount, and it comes with a stainless steel sissy bar.

The turn signal is so small that it cannot be confirmed in the image, it is an approved Star Beans turn signal.

【Hardtail】

『“Rigid Line” Bolt-On Hardtail Kit』(18cm long, made-to-order) ¥78,000

〇A detachable hardtail kit with bolts/nuts. You can return to the swing arm/rear shock specification at the time of vehicle inspection or when changing the style. (Frame processing required)

※This vehicle has a tightly squeezed hardtail upper part.

※In this vehicle, molding and ribs are added with sheet metal and bond.

【Rear Wheel】

The industry’s first normal hub modified disc brake kit. This is a specification where the calipers are installed in double and the handbrake can also be used in order to make the front area extremely simple, like a chopper that does not arrange brakes around the front.

“Rear Disc Wheel Kit”

By using a normal hub, consumables such as the hub clutch area and sprocket are always available, changing the final gear ratio is easy, and the repair time is short in case of emergency. Also, since it is designed with the same dimensions as the normal brake mounting width, you can easily change the specifications to drum brakes.

『16″ Kit Steel Spoke SR400/500 Rear』 ¥28,000-

〇A kit that gives a powerful look, the same size as a general Harley.

“Rear Double Caliper/Caliper Support”

〇Brembo can caliper is installed in double.

【Rear Fender】

『5-Inch Custom Rib Fender – Steel Material』¥15,070

『Reinforcement Back Plate for 5-Inch Rib Fender』¥2,200

〇A rib fender with high thickness and durability. The reinforcement plate is added around the mounting hole to mount it more robustly. It is said that the rear fender of the SR custom will crack, but it is mounted safely with 6 points by adding effective reinforcement based on the sturdy rear fender material with a thick wall.

【Sissy Bar】

“Stainless Steel Sissy Bar”