by Abbishek V Bharadwaj November 07, 2025 1 min read
The Firefox Nuke D 27S is the brand’s latest evolution in its performance-oriented MTB line, crafted to bridge everyday city usability with weekend trail adventure. Positioned as a “performance-ready all-terrain machine”, it brings together a strong alloy frame, smooth 27-speed gearing, hydraulic disc brakes, and a suspension fork designed to take on varied surfaces with confidence.
“This isn’t just a mountain bike; it’s your ticket to explore every route from city streets to forest trails.”
At the core of the Firefox Nuke D 27S lies an alloy hardtail frame engineered for strength and agility. Its geometry strikes a fine balance between sporty trail posture and upright urban comfort ensuring you stay stable off-road but not cramped on daily commutes. The internal cable routing keeps the look sleek and modern, while the matte finish with sharp graphics gives the bike a bold, ready-for-anything aesthetic.
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With its lightweight alloy frame and refined geometry, the Nuke D 27S is built to conquer both concrete and countryside.
Powering this MTB is a 3×9-speed drivetrain, using Microshift or Shimano components, offering a versatile gear range for every condition steep inclines, long flats, or technical descents. Shifting feels crisp and responsive, with smooth transitions even under moderate torque.
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From trail climbs to quick dashes on tarmac, the 27-speed drivetrain ensures power and control never skip a beat.
The front suspension fork is tuned for real-world versatility soft enough to absorb bumps and potholes, yet firm when you want efficient pedaling on smoother roads.
The handlebar’s width and height balance provide excellent steering leverage, while the ergonomic grips reduce fatigue on long rides. The saddle is designed with a mid-density foam contour, comfortable for commutes yet firm enough for trail support.
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Lock it out for the city, open it up for the trails versatility made simple.
Braking confidence comes from hydraulic disc brakes, offering strong, consistent stopping power regardless of weather or terrain. The modulation is smooth, providing progressive control during descents or quick stops.
The steering response is stable but not twitchy ideal for mixed conditions. Whether navigating tight corners or taking long downhill runs, the bike feels predictable and composed
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Reliable braking power meets precision control ride harder, stop smarter.
Rolling on 27.5-inch alloy double-wall rims, the Nuke D 27S strikes the perfect middle ground between acceleration and obstacle rollover. The 2.1-inch MTB tires offer excellent grip on gravel, mud, and urban patches alike.
The tread pattern enhances cornering traction without slowing down on straight sections, giving you a confident all-surface experience. These tires complement the bike’s overall setup perfectly for riders who switch between city lanes and off-road detours.
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Big enough to roll over obstacles, light enough to keep you swift the 27.5” setup does it all.
The Firefox Nuke D 27S is a powerhouse for those who demand durability, versatility, and control in one package. It’s equally at home on weekday roads as it is on weekend trails. With premium touches like hydraulic brakes, 27-speed gearing, and a robust suspension fork, it brings advanced MTB performance at an accessible price point.