Specialized Rockhopper Comp 27.5 2021
Bike details
Key information split into simple groups.
Bike summary
-
Category
-
Frame Aluminum
-
Wheels 27.5"
-
Travel Front 100mm
-
Fork SunTour XCM
-
Groupset microSHIFT Advent
-
Suspension Hardtail
-
Drivetrain 1 × 9
-
Brakes Hydraulic Disc
Recommended size guide.
XS
151cm - 164cm
SM
160cm - 172cm
MD
166cm - 179cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
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
Suspension Fork
SR Suntour XCM 27.5, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 80/90/100mm travel (size-specific), 42mm offset
Drivetrain
Rear Derailleur
microSHIFT Advent, 1x9 w/ clutch
Shift Levers
microSHIFT Advent, 9-speed
Cassette
microSHIFT Advent, 9-speed, 11-42T
Crank
Stout 1x, forged alloy, 30T
Bottom Bracket
Square-tapered, 73mm, internal bearings, 122.5mm spindle
Chain
KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™
Wheels
Front Hub
Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h
Rear Hub
Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h
Rims
Stout Alloy, hookless, pinned, disc only, double-wall, 25mm inner width, 28h
Spokes
Stainless, 14g
Tires
Front: Ground Control Sport, 27.5x2.3", Rear: Ground Control Sport, 27.5x2.3"
Brakes
Brakes
Shimano BR-MT200, hydraulic disc, 180mm
Cockpit
Stem
Stout 3D-forged alloy, 31.8mm, 6-degree rise
Handlebar
Stout Mini Rise, alloy, 9-degree backsweep, 15mm rise, 31.8mm
Grips
Specialized Trail Grips, lock-on
Seat
Saddle
Bridge Sport, Steel rails, 155/143mm
Seatpost
Alloy, 12mm offset, 2-bolt clamp, 30.9mm
Fit data
Numbers for sizing and ride feel.
| Size | XS | SM | MD |
|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.46 mm | 1.42 mm |
| Bottom Bracket Height | 310 mm | 310 mm | 310 mm |
| Front Center | 630 mm | 656 mm | 682 mm |
| Rake | 42 mm | 42 mm | 42 mm |
| Trail | 97 mm | 97 mm | 97 mm |
| Stack | 554 mm | 568 mm | 584 mm |
| Reach | 370 mm | 390 mm | 410 mm |
| Top Tube Length | 536 mm | 560 mm | 584 mm |
| Seat Tube Angle | 73.5 ° | 73.5 ° | 73.5 ° |
| Seat Tube Length | 310 mm | 350 mm | 400 mm |
| Head Tube Angle | 68 ° | 68 ° | 68 ° |
| Head Tube Length | 95 mm | 100 mm | 105 mm |
| Chainstay Length | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1062 mm | 1087 mm | 1113 mm |
| Bottom Bracket Drop | 43 mm | 43 mm | 43 mm |
| Standover Height | 653 mm | 690 mm | 730 mm |
| Wheels | 27" | 27" | 27" |
| Rider Min Height | 151 cm | 160 cm | 166 cm |
| Rider Max Height | 164 cm | 172 cm | 179 cm |
Model Overview
Rockhopper Comp 27.5 is part of the Specialized Rockhopper model. There are 119 bikes that carry this model name. Take a sneak peek at all Specialized Rockhopper bikes models from 2021, by clicking here.
Model range prices
The most economical model, the Specialized Rockhopper 2021 has a starting price of 583$. Specialized Rockhopper Expert 27.5 2021 on the other hand is the most expensive at 1400$.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Crosscountry bikes
If you want an acceptable Crosscountry bike you should know that the average price is 1905$. However, this doesn’t mean that if you spend less money on a Crosscountry bike, you couldn’t get a decent one. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
When Specialized released this model in 2021, its price was 1000$. Comparing this to the average Crosscountry bike price, we see that the price is 90.5% smaller.
Internal Cable Routing
This bike has an internal cable routing. As a result, this helps to preserve the bike’s cables. No more cables around your bike.
Rockhopper Comp 27.5 components
Fork
Specialized Rockhopper Comp 27.5 2021 bike is equipped with the SunTour XCM fork, and has 100mm travel. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In short, you should always ensure you have a good fork when purchasing a bike.
Wheels size
When leaving the production line, the Rockhopper Comp 27.5 model has 27.5″ aluminum wheels. These wheels will provide you with more control over the bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Specialized Rockhopper Comp 27.5 is equipped with Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.
Sizes
This bike is available in 3 sizes. They vary from 151 cm – 179 cm (4.95 ft – 5.87 ft). In conclusion, it won’t take much to find one that’s right for you.
