Specialized Rockhopper Comp 27.5" Mountain Bike 2025 - Hardtail MTB
- A heart of gold, presented in our lightweight yet durable Premium A1 Aluminum, the Rockhopper’s butted aluminum frame features hydroformed top and downtubes to keep weight low and strength high, all while providing increased standover clearance, slick internal cable routing, and dropper-post compatibility.
- To ensure that the Rockhopper offers both the best fit and best performance for every person, no matter their measure, we’ve paired each Rockhopper frame size with the optimal wheel size. The result is a Rockhopper to fit every rider and the assurance that every Rockhopper is rolling on the best-handling wheel for its frame size.
- Beautifully beastly, Shimano BR-MT200 hydraulic disc brakes pack a mean bite but deliver their power with a refined, intuitive feel to make for a package that punches way above its pay grade.
- Keep things simple with a durable 1x Shimano drivetrain with plenty of range and a clutch-equipped rear derailleur that keeps your ride quiet—and your chain on.
- Pair dead-reliable hubs from Formula with our 25-millimeter internal diameter, hookless Specialized Alloy rims for a strong, light, and durable wheelset hat trick.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible |
Fork | RockShox Judy, Solo Air, Turnkey damper, 46mm offset, QR, 80/90/100mm travel (size-specific), steel steerer |
Stem | Stout 3D-forged alloy, 31.8mm, 6-degree rise |
Bars | Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
Front Brake | Shimano BR-MT200, hydraulic disc, 160mm |
Rear Brake | Shimano BR-MT200, hydraulic disc, 180mm |
Brake Lever | Shimano BR-MT200 |
Rear Mech | Shimano Deore, RD-M5120, 10-speed |
Shifters | Shimano Deore M4100, 10-speed |
Speed | 10 |
Rims | Specialized Alloy, hookless, Tubeless ready, 25mm inner width |
Front Hub | Formula DC-20, 6-Bolt, disc, 100x9mm spacing, quick-release |
Rear Hub | Formula DC-22, 6-Bolt freehub, disc, 135x9mm spacing, quick-release |
Spokes | Stainless, 14g |
Front Tyre | Fast Trak Sport, 27.5"x2.35" |
Rear Tyre | Fast Trak Sport, 27.5"x2.35" |
Seat Post | Alloy, 2-bolt clamp, 30.9mm |
Saddle | Bridge Sport, Steel rails, 155/143mm |
Chainset | Stout 1x, forged alloy |
Bottom Bracket | Square-tapered, 73mm, internal bearings, 122.5mm spindle |
Chain | KMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Link™ |
Cassette | Sunrace, 11-46t, 10spd |
Pedals | SBC-54 Flat pedal |
Weight | 12.58 kg |
Mountain Bike Size Chart
Height
|
Bike Size
|
Mountain Bike Size
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Specialized Rockhopper Comp 27.5" Mountain Bike 2025 - Hardtail MTB
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