Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Travel Front 120mm -
Travel Rear 120mm -
Fork Fox Factory Float 34
-
Groupset X01 Eagle, GX Eagle -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
155cm - 174cm
MD
171cm - 184cm
LG
181cm - 193cm
XL
191cm - 205cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Ground Control, aluminium, Boost, BSA 73, 120mm travel, approx. 2792g, Matt Black/Light Olive M-29
Suspension Fork
FOX FLOAT 34 SC, Factory, Kashima, Boost, 44mm offset black 29", 120mm travel
Rear Shock
FOX Float DPS, Factory, Kashima, 190x45
Drivetrain
Rear Derailleur
SRAM X01 Eagle, black 12-speed
Shift Levers
SRAM GX Eagle, 12-speed, Lunar, 12-speed
Cassette
SRAM GX XG-1275 Eagle, 10-52, 12-speed
Crank
Truvativ Stylo 7K EAGLE, DUB BSA73, 32 teeth, 175mm
Bottom Bracket
BSA, 73mm, threaded
Chain
SRAM GX EAGLE, 12-speed silver
Pedals
delivered without pedals
Wheels
Rims
Mavic Crossmax XL, 622x30C, Boost, TLR, XD, 29"
Tires
Schwalbe Nobby Nic, Evolution Line, Super Ground, TLE, Addix SpeedGrip, black 29x2.35
Brakes
Brakes
SRAM G2 RSC, 180/180mm
Cockpit
Stem
Level Nine Race, 6°, Ø 31,8 mm, black stealth 60mm
Handlebar
Level Nine Race, Rise 15mm, Back Sweep 9°, UP Sweep 5°, Ø 31,8 mm, black stealth 760mm
Grips
Comfort grip, black
Seat
Saddle
Selle Italia X3 Flow black/black
Seatpost
ROSE-Dropper seatpost, X1 lever, black 31,6mm/459mm/150mm Hub
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.4 mm | 1.4 mm | 1.34 mm | 1.29 mm |
| Bottom Bracket Height | 340 mm | 340 mm | 340 mm | 340 mm |
| Front Center | 687 mm | 724 mm | 753 mm | 782 mm |
| Rake | 38 mm | 43 mm | 43 mm | 43 mm |
| Trail | 118 mm | 112 mm | 112 mm | 112 mm |
| Stack | 565 mm | 599 mm | 608 mm | 618 mm |
| Reach | 403 mm | 428 mm | 453 mm | 478 mm |
| Top Tube Length | 551 mm | 579 mm | 607 mm | 634 mm |
| Seat Tube Angle | 75 ° | 75 ° | 75 ° | 75 ° |
| Seat Tube Length | 410 mm | 440 mm | 470 mm | 500 mm |
| Head Tube Angle | 67 ° | 67 ° | 67 ° | 67 ° |
| Head Tube Length | 105 mm | 105 mm | 115 mm | 125 mm |
| Chainstay Length | 417 mm | 434 mm | 434 mm | 434 mm |
| Wheelbase | 1104 mm | 1156 mm | 1185 mm | 1214 mm |
| Bottom Bracket Drop | 16 mm | 36 mm | 36 mm | 36 mm |
| Front Travel | 120 mm | 120 mm | 120 mm | 120 mm |
| Wheels | 29" | 29" | 29" | 29" |
| Rider Min Height | 155 cm | 171 cm | 181 cm | 191 cm |
| Rider Max Height | 174 cm | 184 cm | 193 cm | 205 cm |
Model Overview
GROUND CONTROL 4 belongs to the Rose Ground model. Rose launched 16 bikes of this model so far. Check out the entire range from 2021 of this model, by clicking this link.
Model range prices
Rose GROUND CONTROL 1 2021 is the most affordable bike of this model and has a price of 2016$. On the other hand, Rose GROUND CONTROL 4 2021, is the most expensive and costs 3928$.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Trail bikes average price
According to our math, the average price for a trustworthy Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
When Rose released this model in 2021, its price was 3928$. In conclusion, this bike price is 42.22% more expensive than the price of the average Trail bike.
GROUND CONTROL 4 components
Fork
The fork installed on this bike is the Fox Factory Float 34 model. The travel on this model is 120mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
Rose GROUND CONTROL 4 bike has the FOX Float DPS model installed, and has a travel of 120mm. Rear shocks offer better comfort, better traction, and better cornering. This allows for quicker riding on rough roads and trails. To sum up, always consider getting a bike that has a rear shock as well.
Wheels size
The GROUND CONTROL 4 2021 bike is equipped with 29″ aluminum wheels when leaving the factory. With 29″ wheels, bumps will feel lighter and you’ll gain more speed on descends, compared to smaller wheel-sized bikes. However, if you’re not a tall person, you might find it difficult to adapt to this wheel size.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
Sizes
This bike is available in 4 sizes. They vary from 155 cm – 205 cm (5.09 ft – 6.73 ft). In short, you can easily find one that suits you.
Dropper post
A dropper post is included with the GROUND CONTROL 4. If used correctly, a dropper post gives you more faith, maneuverability, and greater control over your bike.