Vintage 90s Diamondback Response Sport Mountain Bike — 26", 19" Frame

Vintage 90s Diamondback Response Sport — Built Into a Fast City Commuter

This Diamondback Response Sport started life as a 1990s mountain bike and has been set up as something more useful: a quick, comfortable, and genuinely durable city commuter. If you want one bike for getting to work, running errands, and riding the neighbourhood — and you would rather not worry about it locked up outside — this is a smart choice.

The original black frame wears unmistakable retro 90s purple splatter graphics, which have swung all the way back around into being genuinely desirable. It is a steel frame — tough, forgiving over broken pavement, and repairable in a way that carbon and aluminum are not.

The commuter setup is where the thought went in. It rolls on Schwalbe City Jet tires — a smooth, fast-rolling pavement tire that transforms how an old mountain bike feels on the road, cutting the drag and buzz that knobby tires create on tarmac — mounted on 26" alloy wheels. Up front, a RockShox suspension fork takes the sting out of potholes and broken kerbs, and the Shimano 21-speed drivetrain gives plenty of range for bridges, hills, and flat sprints alike. Cantilever brakes provide strong, well-proven stopping power.

The frame is structurally solid with no dents. It is ready to ride as it sits.

Why This One Works

• Already converted for the city: smooth pavement tires fitted — no need to spend money making it commuter-friendly.
• Schwalbe City Jet tires: a real upgrade over knobbies. Faster, quieter, and far less effort on pavement.
• RockShox front fork: genuine suspension for rough city streets.
• Shimano 21-speed: a proven, serviceable drivetrain that any shop can work on.
• Steel frame, no dents: structurally sound and built to take abuse.
• Locks up without worry: all the capability of a modern hybrid, none of the anxiety about leaving it at a rack.
• That 90s splatter paint: instantly recognizable, and back in style.

Specifications

Sizing

A 19" mountain bike frame generally suits riders around 5'9" to 6'1". Message us with your height and inseam if you are unsure and we will give you a straight answer on fit.

Condition Notes

This vintage Diamondback Response Sport is in good, pre-owned vintage condition and set up as a smooth city commuter. The original black frame features retro 90s purple splatter graphics and shows light cosmetic scratches, small paint chips, and normal wear from use, but remains structurally solid with no dents.

It comes upgraded with high-performance Schwalbe City Jet smooth pavement tires on 26" alloy wheels, a comfortable RockShox front suspension fork, and a reliable Shimano 21-speed drivetrain.

Please review all photos carefully, as they are part of the description. As with any bike of this age, a tune-up is recommended if you plan to ride it daily.

Shipping & Local Pickup

Ships freight, professionally packed. Local pickup is available at our Miami location — get in touch and we will set it up. Only one available.

Questions about sizing, the build, or shipping? Message us — we are happy to help.