Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 27.5" -
Travel Front 100mm -
Fork RST GILA
-
Groupset Altus, Tourney -
Suspension Hardtail -
Drivetrain 3 × 8 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
15"
145cm - 158cm
17"
155cm - 172cm
19"
170cm - 185cm
21"
182cm - 200cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
alloy 6061 27.5'
Suspension Fork
RST Gila 27.5 ML lock out (100 mm)
Drivetrain
Rear Derailleur
SHIMANO Altus
Front Derailleur
SHIMANO TY700 (34.9)
Shift Levers
SHIMANO Altus (24)
Cassette
SHIMANO HG200-8 12-32 (8)
Crank
PROWHEEL 42-34-24 teeth 170 / 175 mm cranks
Chain
KMC Z72
Pedals
resin
Wheels
Front Hub
QUANDO Disc 32 holes
Rear Hub
QUANDO Disc 32 holes
Rims
AUTHOR Xenon 27.5 32 holes
Spokes
black steel
Tires
AUTHOR Rocket 27.5' x 2.10'
Brakes
Brakes
TEKTRO disc hydraulic (6' rotors)
Cockpit
Stem
AUTHOR alloy
Handlebar
AUTHOR 8° 660 / 680 mm
Grips
AUTHOR kratton rubber
Seat
Saddle
AUTHOR Courier
Seatpost
AUTHOR alloy (31.6)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 15" | 17" | 19" | 21" |
|---|---|---|---|---|
| Bottom Bracket Height | 320 mm | 320 mm | 320 mm | 320 mm |
| Front Center | 625 mm | 648 mm | 668 mm | 693 mm |
| Rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Top Tube Length | 568 mm | 588 mm | 613 mm | 628 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 381 mm | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 69 ° | 69 ° | 69 ° | 69 ° |
| Head Tube Length | 115 mm | 125 mm | 130 mm | 140 mm |
| Chainstay Length | 433 mm | 433 mm | 433 mm | 433 mm |
| Wheelbase | 1056 mm | 1079 mm | 1099 mm | 1124 mm |
| Bottom Bracket Drop | 35 mm | 35 mm | 35 mm | 35 mm |
| Wheels | 27" | 27" | 27" | 27" |
| Rider Min Height | 145 cm | 155 cm | 170 cm | 182 cm |
| Rider Max Height | 158 cm | 172 cm | 185 cm | 200 cm |
About this model
Impulse belongs to the Author Impulse model. Author launched 25 bikes of this model so far. Check out the entire range from 2018 of this model, by clicking this link.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Average price for Crosscountry bikes
According to our math, the average price for a trustworthy Crosscountry bike is 1905$. However, you could also get a good Crosscountry 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.
Crosscountry bikes average weight
If we make a quick analysis of the average weight of a Crosscountry bike, we get 12.4 kg (27.34 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
Impulse weighs 14.2 kg (31.31 lbs) and is considerably heavier than the average. In short, the average Crosscountry bike weight is 14.52% lower than this one.
Impulse components
Fork
The fork installed on this bike is the RST GILA model. The travel on this model is 100mm. Bike forks are great for shock absorption and provide you with a smooth ride. In short, you should always ensure you have a good fork when purchasing a bike.
Wheels size
The wheels on Impulse are the 27.5″ aluminum type. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
For your safety, it is important to have quality breaks on your bike. Author Impulse has Hydraulic Disc brakes installed. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, you can ride your bike with confidence.
Sizes
Impulse comes in 4 sizes, that range from 145 cm – 200 cm (4.76 ft – 6.56 ft). In short, it won’t be difficult to find the right one for you.