Full Subframe Clearout & Electrical Relocation

To achieve the customer’s vision of an under-seat exhaust, the entire subframe area had to be completely cleared. On a standard Scout, this space houses almost every essential electronic and service component, so the process required a full re-engineering of the bike’s internal layout. The battery, ECU, fuse box, regulator/rectifier, tip-over sensor, several sections of the wiring loom, and the coolant expansion bottle all had to be removed and relocated.

Every one of these components was repositioned beneath the swingarm, a task that demanded significant modification of the wiring harness to accommodate new routing paths and mounting positions. To complete the package, we fabricated a bespoke aluminium coolant bottle that integrates cleanly with the new arrangement and maintains proper cooling performance. This level of relocation work requires meticulous planning, heat management, waterproofing and mechanical security—essentially redesigning the Scout’s internal architecture from the ground up.

Under-Seat Exhaust Conversion

The under-seat exhaust is one of the defining visual and engineering features of this build. It completely transforms the rear silhouette of the bike and required substantial design, fabrication and testing to execute safely and reliably.

The customer supplied a Jekill & Hyde electronically valved exhaust, which we extensively modified to suit the new configuration. The silencer was shortened to achieve the correct proportions and clearances, and a fully custom stainless steel header system was hand-fabricated to route the exhaust beneath the seat. Custom brackets and mounting points were engineered to support the revised system, and considerable attention was placed on thermal management to protect the surrounding electronics and components. The result is a dramatic, sculptural exhaust layout that elevates the bike’s presence while maintaining full functionality.

300 Rear Wheel Conversion

Fitting a 300-section rear tyre to an Indian Scout is not a bolt-on job—it is one of the most complex and involved transformations possible on this platform. A standard Scout simply does not have the physical space to accommodate a wheel of this size, so the chassis, driveline and geometry all had to be re-engineered.

We began by widening the rear swingarm to create enough room for the massive wheel and tyre combination. Because the increased width requires the front pulley to sit much further outboard, we designed and manufactured a custom outrigger bearing assembly to support the extended shaft and maintain correct belt alignment. Custom shock spacers and wheel spacers were also produced to ensure the suspension operated smoothly and safely with the new dimensions. A matching front wheel was selected to maintain visual balance, and every clearance—from belt tracking to frame spacing—was calculated with precision to prevent interference at any point in the suspension stroke. This level of work truly showcases the extremes of what can be achieved on a Scout.

Custom Bodywork

The visual impact of the oversized rear wheel demanded bodywork that matched the bold proportions while keeping weight under control. The rear fender was sculpted and moulded from fibreglass, producing a lightweight yet strong component that fits tightly over the 300-section tyre. Up front, we installed a custom MSR fender featuring mesh cut-outs that echo the design language of the MSR radiator guard, tying the front end together visually.

For the finishing touches, the entire motorcycle was refinished in a deep satin-red paint scheme and completed with MSR tank decals for a distinctive and cohesive custom aesthetic.

Handlebar & Control System Redesign

One of the customer’s biggest priorities was achieving completely uncluttered handlebars—no bulky switchgear, no external throttle housings, and a clean, minimalist look. Achieving this required extensive machining and custom component integration.

The top yoke was reworked to remove the original riser mounts, making way for RSD billet four-bolt risers. A Müller internal throttle system was installed, allowing the throttle cable to run inside the handlebar for a totally seamless appearance. The wiring for the controls was also routed internally, paired with Motogadget push-button switchgear for the cleanest possible finish.

Beringer billet brake and clutch master cylinders with finger-moulded levers were fitted to elevate both performance and aesthetics. Motogadget bar-end indicators and glassless mirrors further reduce visual bulk while providing premium functionality. Vans Waffle grips were chosen to complete the vintage-performance feel.

To retain a fully functional instrument cluster without disrupting the clean line of the bars, we fitted a Roland Sands billet speedo housing along with custom-made brackets and a rear speedo cover. The final handlebar setup is one of the cleanest and most refined installations achievable on an Indian Scout.

Full Parts & Modifications List

Controls

• Beringer brake & clutch master cylinders with finger-moulded levers

• Müller internal throttle kit

• Modified top yoke to accept RSD 4-bolt risers

• Fehling 1¼" Flyer handlebars

• Motogadget bar-end indicators

• Motogadget glassless mirrors

• Motogadget push-button switchgear with full internal wiring

• Vans Waffle grips

• Roland Sands speedo housing

• Custom speedometer mounting brackets and covers

Chassis & Body

• Custom made Aluminium coolant expansion bottle

• Lithium battery, ECU, reg rec relocated with reworked wiring harness

• MSR front fender with mesh cut-out

• Custom fibreglass rear fender

• Widened rear swingarm

• Custom outrigger bearing to space front pulley

• MSR billet swingarm bolt cap

• MSR billet rear spindle cap

• MSR subframe infill panel

• Satin red custom paintwork

• 1920’s solo seat

• Push-and-turn ¼-turn flush fuel cap