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The Bonneville’s stock seat is comfortable enough for short rides but wears thin on longer ones, and there’s a genuine aftermarket built around this platform – from bolt-on comfort saddles to fully custom café-racer perches. These are real, currently-available seats verified as fitting the Bonneville, T100 and T120 models.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Corbin Gunfighter & Lady Saddle (2021-2026 Bonneville T100/T120) | $500-$650 | Amazon · eBay |
| 2 | Corbin Classic Gunfighter Saddle (2021-2025 Bonneville T100) | $450-$600 | Amazon |
| 3 | Corbin Vintage Gunfighter Saddle (2001-2020 Bonneville/T100) | $450-$600 | Amazon |
| 4 | Mustang Classic Seat (Bonneville, Bonneville T100, Bonneville SE) | $280-$350 | Amazon · eBay |
| 5 | Mustang Sport Touring One-Piece 2-Up Seat | $280-$350 | Amazon · eBay |
| 6 | Tamarit Custom Seat for Triumph Bonneville | $350-$500 | Amazon · eBay |
| 7 | British Bike Bits Bolt-On Seat | $200-$300 | Amazon |
| 8 | JP Vintage Sport Duo Seat (via Omega Racer) | $400-$550 | Amazon |
The picks, in detail
Corbin Gunfighter & Lady Saddle (2021-2026 Bonneville T100/T120)
Corbin’s flagship two-up saddle, built for both rider and passenger comfort on modern Bonnevilles.
- Fits 2021-2026 Bonneville T100 and T120
- Separate rider/passenger contouring
- Corbin’s proprietary foam and cover materials
- Excellent long-ride comfort for both rider and passenger
- Corbin’s decades of saddle-making reputation
- Premium price point
Corbin Classic Gunfighter Saddle (2021-2025 Bonneville T100)
A solo-focused Gunfighter design tailored specifically to the current T100.
- Fits 2021-2025 Bonneville T100
- Classic Gunfighter solo profile
- Custom order options through Corbin
- Purpose-built fit for the current T100
- Classic styling that matches the model’s retro look
- Solo focus means less passenger accommodation than the Gunfighter & Lady
Corbin Vintage Gunfighter Saddle (2001-2020 Bonneville/T100)
The Corbin option for owners of the earlier-generation, air-cooled Bonneville and T100.
- Fits 2001-2020 Bonneville and T100
- Vintage Gunfighter styling
- Corbin custom order options
- Covers the older Bonneville generation the newer Corbin seats don’t
- Same Corbin comfort engineering
- Not compatible with 2016+ liquid-cooled Bonnevilles
Mustang Classic Seat (Bonneville, Bonneville T100, Bonneville SE)
A classic-profile bolt-on seat for the earlier Bonneville and T100/SE models.
- Fits Bonneville, Bonneville T100, Bonneville SE
- Classic single-seat profile
- Mustang’s signature deep-cell foam
- Comfortable Mustang foam for long rides
- Retains classic Bonneville seat lines
- Does not fit the current T120 or Street Twin per Mustang’s own fitment notes
Mustang Sport Touring One-Piece 2-Up Seat
A one-piece touring seat for owners who want more passenger room without switching to a full two-seat saddle.
- Fits Bonneville T100, Scrambler, Thruxton (2001-15) and SE (2012)
- One-piece 2-up design
- Touring-focused foam profile
- Good rider/passenger balance for touring
- Wide model-year fitment within its range
- Per Mustang’s fitment guidance, does not fit Street Twin or T120
Tamarit Custom Seat for Triumph Bonneville
A Spanish custom-seat specialist offering plug-and-play seats across the whole modern Bonneville range.
- Covers Bonneville, T100 and T120 ranges
- Polyurethane, nautical leather and fiberglass construction
- Plug-and-play mounting, no modification needed
- Elegant, distinctive styling not shared with mass-market brands
- Durable premium materials
- Import lead times and cost from a European specialist shop
British Bike Bits Bolt-On Seat
A UK-made seat with one of the widest Bonneville-range fitment lists, and a genuinely quick install.
- Wide range of Bonneville model fitments
- Made in England
- Bolt-on install, no drilling or cutting, roughly a 5-minute swap
- Very fast, tool-light installation
- One of the largest Bonneville seat ranges available
- Import shipping from the UK adds lead time for US buyers
JP Vintage Sport Duo Seat (via Omega Racer)
A craftsman-built custom seat for the modern-classic Bonneville range, with an optional gel comfort insert.
- Fits Triumph Street Twin, T120, T100
- Custom craftsman construction
- Optional gel inserts for rider and pillion
- Gel insert option is a genuine comfort upgrade for long rides
- Built to international quality standards
- Sold exclusively through Omega Racer, limited retail availability
Buying tips
- Double-check model-year fitment carefully – several Bonneville seats (notably the Mustang lineup) explicitly do not carry over between the pre-2016 air-cooled bikes and the current T100/T120/Street Twin liquid-cooled range.
- A gel insert (JP Vintage/Omega Racer) or deep-cell foam (Mustang, Corbin) makes the biggest difference on rides over an hour – thin factory-style foam looks right but fatigues faster.
- Bolt-on seats (British Bike Bits, Mustang) install in minutes with no modification; fully custom seats (Tamarit, Corbin custom orders) take longer to arrive but tailor more precisely to your riding position.
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