Reactor 275 Alloy Frame
Nukeproof
Trail
Reactor 275 Alloy Frame is an alloy trail mountain bike (2024), from Nukeproof, part of the Reactor family. Rider-wise, it fits riders who want a more active, performance-leaning off-road feel, with a setup that gives you a sporty, active riding position, and is well suited to natural trails and mixed off-road terrain. On MatchBikes metrics, it scores well for strong value-for-money versus many similar bikes, strong climbing friendliness for sustained uphill riding, and strong speed potential on smoother terrain. What it gives up slightly is a firmer ride feel than comfort-first options. Compare this bike with other trail bikes on MatchBikes.com.
8.0
Rating

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Score Summary
Performance
8.0
Value
9.7
Fit
7.0
Performance
Built for speed and efficiency
Speed
7.3
High
Climbing Efficiency
8.6
Climber
Suspension
8.0
High-impact ready
Fit
Dialed-in Fit & Comfort
Riding Position
7.8
Sporty
Fit Flexibility
5.8
Moderately Adjustable
Ride Comfort
7.4
Firm
Value
Value for Money
9.7
Exceptional Value
Surface Range
Natural TrailsSpecifications
General
Brand
Nukeproof
Model
Reactor 275 Alloy Frame
Year
2024
Price
$2,371
Weight
3.77 kg
Category
Mountain
Sub Category
Trail
Frame
Frame
Nukeproof Reactor 275 Alloy, 140mm Travel, custom triple butted hydro-formed tube set for front triangle and chain stays, UD woven carbon fibre Seat stays, internal cable routing, internal cable routing, ISCG 05 mount, Enduro bearings, threaded 73mm BB, Boost 148mm rear axle spacing, 3D contoured rubber frame protection.
Rear Shock
RockShox Super Deluxe Ultimate RCT, Custom, S/M - 0L1 LNL1 32SB C C1, L/X - 0L1 LNL 32SB C C1, 210x55mm, Bearing End, 1x bottomless token fitted.
Suspension Type
Full
Drivetrain
Bottom Bracket
BSA, 73mm, threaded
Seat
Saddle
Nukeproof
Geometry
| Measurement | Reactor 275 150mm Fork (Alloy) | Reactor 275 160mm Fork (Alloy) | Reactor 275 150mm Fork (Alloy) | Reactor 275 160mm Fork (Alloy) | Reactor 275 150mm Fork (Alloy) | Reactor 275 160mm Fork (Alloy) | Reactor 275 150mm Fork (Alloy) | Reactor 275 160mm Fork (Alloy) |
|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.412 mm | 1.435 mm | 1.333 mm | 1.354 mm | 1.262 mm | 1.281 mm | 1.189 mm | 1.207 mm |
| Bottom Bracket Height | 336 mm | 339 mm | 336 mm | 339 mm | 336 mm | 339 mm | 336 mm | 339 mm |
| Front Center | 728 mm | 732 mm | 759 mm | 763 mm | 790 mm | 794 mm | 825 mm | 829 mm |
| Rake | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm |
| Trail | 122 mm | 126 mm | 122 mm | 127 mm | 121 mm | 126 mm | 122 mm | 127 mm |
| Stack | 600 mm | 603 mm | 605 mm | 608.5 mm | 609 mm | 612.5 mm | 613.5 mm | 617.3 mm |
| Reach | 425 mm | 420.2 mm | 454 mm | 449.5 mm | 482.5 mm | 478 mm | 516 mm | 511.5 mm |
| Top Tube Length | 580 mm | 581 mm | 610 mm | 611.2 mm | 640 mm | 641.5 mm | 675 mm | 676.3 mm |
| Seat Tube Angle | 75.5 ° | 75.1 ° | 75.5 ° | 75.1 ° | 75.5 ° | 75.1 ° | 75.5 ° | 75.1 ° |
| Seat Tube Length | 381 mm | 381 mm | 420 mm | 420 mm | 458 mm | 458 mm | 508 mm | 508 mm |
| Head Tube Angle | 66 ° | 65.5 ° | 66 ° | 65.5 ° | 66 ° | 65.5 ° | 66 ° | 65.5 ° |
| Head Tube Length | 110 mm | 110 mm | 115 mm | 115 mm | 120 mm | 120 mm | 125 mm | 125 mm |
| Chainstay Length | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm | 430 mm |
| Wheelbase | 1150 mm | 1154 mm | 1181 mm | 1185 mm | 1212 mm | 1216 mm | 1247 mm | 1251 mm |
| Bottom Bracket Drop | 18 mm | 15 mm | 18 mm | 15 mm | 18 mm | 15 mm | 18 mm | 15 mm |
| Standover Height | 723 mm | 729 mm | 721 mm | 728 mm | 722 mm | 729 mm | 725 mm | 732 mm |
| Front Travel | 150 mm | 160 mm | 150 mm | 160 mm | 150 mm | 160 mm | 150 mm | 160 mm |
| Wheels | 27" | 27" | 27" | 27" | 27" | 27" | 27" | 27" |




























































