Spark Exhaust Grid-O Underseat Silencer Pair Euro5 KTM 1290/1390 Super Duke R (2020-2026) GKT0111TOM
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Two short silencers, tucked under the seat, and a Euro5 certificate. Spark's underseat conversion turns the Super Duke's side-mounted exhaust into a pair of 175 mm Grid-O cases — a change to the shape of the motorcycle rather than to its paperwork.
Key Features
- Euro5 homologated underseat silencer pair for the KTM 1290 and 1390 Super Duke R, 2020 to 2026.
- Pair of Grid-O silencers, 175 mm long, full titanium.
- 2.9 kg against 3.3 kg standard.
- Double under-seat layout, in full compliance with Euro5.
- Not compatible with the passenger footrests.
- Not compatible with the RR version.
Moving the Exhaust
The Super Duke leaves the factory with a large silencer on one side. Spark's underseat kit takes it away and replaces it with two short cases sitting high and central under the tail.
Spark's own description is that the double under-seat exhaust makes the line of the bike look much sportier, and on this motorcycle that is an understatement — the side of the bike opens up completely, and the rear view changes from an asymmetric can to a symmetrical pair. It is the most visually significant thing you can do to a Super Duke without touching the bodywork.
Two Things It Costs
Spark lists both restrictions and they are not small. The kit is not compatible with the passenger footrests, and it is not compatible with the RR version of the motorcycle.
The pillion seat is the one to think about. Moving the silencers under the tail puts them exactly where the passenger footrest hangers are, and there is no version of this kit that keeps both. If someone regularly rides on the back, the lateral slip-ons GKT0113TOM and GKT0114T do the job without that consequence.
Homologated, With a Racing Case
The Grid-O is the silencer Spark developed for the World Superbike and Moto2 teams: full titanium, visible TIG welding, a titanium grid at the outlet. In this kit it is Euro5 approved.
That combination is worth understanding. The approval comes from the whole assembly — the pipework, the case volume and the packing together — not from softening the silencer. What you get is a road-legal exhaust with a race-derived component in it, rather than a road exhaust styled to look like one.
Four Hundred Grams, and Where They Are
The saving against the standard exhaust is modest on paper: 2.9 kg against 3.3 kg. On a motorcycle this powerful, four hundred grams is not a performance argument and we will not pretend otherwise.
Where it does matter is the distribution. One heavy silencer hanging off one side is replaced by two light ones sitting high, central and close together. The mass is smaller, more symmetrical and nearer the bike's centreline — which a Super Duke, with its very short wheelbase and quick steering, will show you in a direction change rather than on a scale.
Fitment & Compatibility
KTM 1290 Super Duke R, 1290 Super Duke R EVO, 1390 Super Duke R and 1390 Super Duke R EVO, 2020 through 2026. Not for the RR version. The Moto GP underseat pair is GKT0117TOM in titanium and GKT0117DOM in dark style; the Dyno pairs are GKT0120TOMA, GKT0120TOMN and GKT0120TOMC.
Road Approval
Euro5 homologated. Legal for road use as supplied.
Specifications
- Part number: GKT0111TOM
- Type: Underseat silencer pair, homologated
- Silencers: Grid-O, full titanium, 175 mm, supplied as a pair
- Spark weight: 2.9 kg
- Standard weight: 3.3 kg
- Passenger footrests: not compatible
- RR version: not compatible
- Fitment: KTM 1290 / 1390 Super Duke R and R EVO (2020-2026)
- Road approval: Euro5 homologated
- Manufacturer: Spark Exhaust Technology, Mantova, Italy
| Part number | GKT0111TOM |
|---|---|
| Type | Half system |
| Silencer design | Grid-O |
| Material | Titanium |
| Spark weight | 2.9 kg |
| Standard weight | 3.3 kg |
| Weight saving | 0.4 kg |
| Fitment | KTM 1290 SUPERDUKE R / 1290 SUPERDUKE R EVO / 1390 SUPER DUKE R / 1390 SUPER DUKE R EVO (2020-2026) |
| Road approval | EC type-approved |
| Origin | Made in Italy |
- KTM 1290 SUPERDUKE R
- KTM 1290 SUPERDUKE R EVO
- KTM 1390 SUPER DUKE R
- KTM 1390 SUPER DUKE R EVO
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// Spark Exhaust
Spark Exhaust Grid-O Underseat Silencer Pair Euro5 KTM 1290/1390 Super Duke R (2020-2026) GKT0111TOM

Tech specs
- Part number
- GKT0111TOM
- Type
- Half system
- Silencer design
- Grid-O
- Material
- Titanium
- Spark weight
- 2.9 kg
- Standard weight
- 3.3 kg
- Weight saving
- 0.4 kg
- Fitment
- KTM 1290 SUPERDUKE R / 1290 SUPERDUKE R EVO / 1390 SUPER DUKE R / 1390 SUPER DUKE R EVO (2020-2026)
- Road approval
- EC type-approved
- Origin
- Made in Italy
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
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