BIKES
PICK UP
BIKES

The High-Performance SR that Redefines Style: YAMAHA SR400 Custom by DELL-SARA

 6 min read

DELL-SARA's SR400

YAMAHA SR400 Custom (Right Side)

With chassis and handling upgrades, this build also sharpens its look with a race-inspired exterior—a style that defines DELL-SARA’s specialty. Let’s take a closer look at the details.

The base is a 2004 SR400. The engine remains stock, but it’s fitted with a Yoshimura TMR-MJN carburetor and an AAA exhaust system, tuned for maximum performance. The fuel tank and front fender are original designs, and the addition of an R-type seat gives the bike a completely different, race-oriented look compared to the stock SR.

YAMAHA SR400 Custom (Left Side)

Moving to the suspension, the front forks remain stock but feature Hyperpro springs and WM preload adjusters for enhanced performance. The swingarm comes from BELTLAN and is paired with Ohlins rear shocks, a proven setup.

One detail not to be overlooked is the choice to retain spoked wheels while downsizing to smaller diameters and wider rims. Despite being a high-performance custom, the SR still retains its essential character, largely thanks to this wheel choice.

The finished machine is unmistakably a DELL-SARA creation at first glance. This is where the shop’s individuality and identity truly shine. It is a a superbly executed build.

Handlebar

A BORE-ACE stem kit, Sansei Racing clip-on handlebars, and an ACTIVE digital meter equipped on YAMAHA SR400.

No shortcuts were taken around the cockpit area either. A BORE-ACE stem kit, Sansei Racing clip-on handlebars, and an ACTIVE digital meter give the front end a fresh look. Interestingly, the tachometer remains stock, striking a perfect visual balance.

Bodywork

The paint of the YAMAHA SR400was done by SIDEWINDERS.

The original fuel tank adds to the race-inspired vibe, and the paintwork is handled by the familiar SIDEWINDERS team.

The seat of the YAMAHA SR400 is a Thruxton R seat.

The seat is a Thruxton R seat, perfectly matching the machine’s overall mood.

Engine

Although the engine internals are stock, cooling and dress-up parts along with the new paint give it a dramatically different presence.

Intake & Exhaust

The AAA exhaust is equipped on YAMAHA SR400 Custom.

The AAA exhaust doesn’t just maximize engine performance, and it’s also a piece worth admiring for its looks.

Chassis

A Brembo caliper is paired with a Sunstar Premium Racing rotor on YAMAHA SR400

A Brembo caliper is paired with a Sunstar Premium Racing rotor. The combination strikes a perfect balance with the classic look of the spoked wheel.

The swingarm is from BELTLAN and the rear suspension from Ohlins on YAMAHA SR400.

The swingarm is from BELTLAN and the rear suspension from Ohlins, a proven combination for high-performance SR builds.

BORE-ACE rearsets equipped on YAMAHA SR400.

Of course, the bike uses rearsets—BORE-ACE units.

Gallery

YAMAHA SR400 Custom (Right Side) YAMAHA SR400 Custom (Left Side) A BORE-ACE stem kit, Sansei Racing clip-on handlebars, and an ACTIVE digital meter equipped on YAMAHA SR400.
The paint of the YAMAHA SR400was done by SIDEWINDERS. The seat of the YAMAHA SR400 is a Thruxton R seat. The AAA exhaust is equipped on YAMAHA SR400 Custom.
The swingarm is from BELTLAN and the rear suspension from Ohlins on YAMAHA SR400. BORE-ACE rearsets equipped on YAMAHA SR400.
A Brembo caliper is paired with a Sunstar Premium Racing rotor on YAMAHA SR400

Specifications

Part Details
Engine AAA Exhaust Pipe
Carb / Intake YOSHIMURA TMR-MJN Carburetor
BORE-ACE Air Assist
Brake Brembo Brake Caliper (Front)
SUNSTAR Premium Racing Front Brake Rotor
ACTIVE Front Brake Hose
Nissin Radial Pump Front Master Cylinder
Thruxton R Seat
Wheels Front Wheel: 17-Inch x 3.00 Rim
Rear Wheel: 17-Inch x 4.00 Rim
Bridgestone 003ST 110/70-17 (Front Tire)
Bridgestone 003ST 140/70-17 (Rear Tire)
Suspension Hyperpro Springs
WM Preload Adjusters
BORE-ACE Triple Tree
OHLINS Rear Suspension
BELTLAN MC, 5cm Extended, Square Type, RX-Coated Semi-Gloss Swingarm
Steps BORE-ACE Rearsets
Handlebar / Steering Sansei Racing Handlebars
BORE-ACE Stem Kit Top Bridge
BORE-ACE Triple Clamp
DAYTONA Horizontal Mirrors
Bodywork CH-P Custom Fuel Tank
80s Style Custom Front Fender
Peyton Place Half Cowl Kit
DAYTONA Half Side Covers
Electrical Kijima Turn Signals (Front)
DRC Turn Signals (Rear)
Peyton Place Electrical Plate Electrical Box
ACTIVE Speedometer

Original Source of this Article

MOTO TIMES

Hakuyo
Hakuyo

editor

Hakuyo

A foreigner who rides in Japan, Japanese call this "Gaijin Rider". 6th year in the Webike global team. He feels and shares the real bike life in Japan then presents you how interesting Japanese customs are.

Recommend

A Striking, Deep-Green Chopper with Flowing Curves: YAMAHA SR400 Custom by HEIWA MOTORCYCLE
Tracker Style Perfected Down to the Last Detail: YAMAHA SR400 Custom by MotorGarage GOODS
A Builder’s Take on True Balance: YAMAHA SR400 Custom by 2%er
[New Product] High quality press molded Big Cedar Aluminum Fuel Tank for the SR400!
A Cafe Racer with Style and Serious Performance to Match: YAMAHA SR400 Custom by Orange Boulevard
A True All-Round Scrambler: YAMAHA SR400 Custom by GOODS
Early model narrow tank revived! Traditional Narrow Tank for SR400 FI [Osaka Motorcycle Show 2025]
Unwind with a Timeless Spirit: YAMAHA SR400 Custom