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 -
Suspension Hardtail -
Drivetrain 3 × 7 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
14"
140cm - 158cm
16"
155cm - 173cm
18"
170cm - 188cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
alloy 6061 27.5" (ASL)
Suspension Fork
RST Gila 27.5 ML lock out (100 mm)
Drivetrain
Rear Derailleur
SHIMANO Altus
Front Derailleur
SHIMANO M190 (34.9)
Shift Levers
SHIMANO Altus (21)
Cassette
SHIMANO HG20-7 12-32 (7)
Crank
PROWHEEL 42-34-24 teeth 170 mm cranks
Chain
KMC Z51
Pedals
resin
Wheels
Front Hub
QUANDO Disc 32 holes
Rear Hub
QUANDO Disc 32 holes
Rims
AUTHOR Radon 27.5 32 holes
Spokes
black steel
Tires
AUTHOR Speed Master 27.5" x 2.00"
Brakes
Brakes
TEKTRO Auriga disc hydraulic (6" rotors)
Cockpit
Stem
AUTHOR alloy
Handlebar
AUTHOR 25 mm 640 / 660 mm
Grips
AUTHOR high density foam
Seat
Saddle
AUTHOR Fenix
Seatpost
AUTHOR alloy (31.6)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 14" | 16" | 18" |
|---|---|---|---|
| Bottom Bracket Height | 310 mm | 310 mm | 310 mm |
| Front Center | 612 mm | 633 mm | 658 mm |
| Rake | 44 mm | 44 mm | 44 mm |
| Top Tube Length | 552 mm | 567 mm | 592 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 356 mm | 406 mm | 457 mm |
| Head Tube Angle | 70 ° | 69.5 ° | 69.5 ° |
| Head Tube Length | 110 mm | 120 mm | 130 mm |
| Chainstay Length | 432 mm | 432 mm | 432 mm |
| Wheelbase | 1040 mm | 1061 mm | 1086 mm |
| Bottom Bracket Drop | 45 mm | 45 mm | 45 mm |
| Wheels | 27" | 27" | 27" |
| Rider Min Height | 140 cm | 155 cm | 170 cm |
| Rider Max Height | 158 cm | 173 cm | 188 cm |
About this model
Impulse ASL is part of the Author Impulse model. Author launched 25 bikes of this model so far. You can get a glimpse at all models from 2016, by clicking on this link.
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
According to our calculations, the average cost of a Crosscountry bike that is reliable is 1905$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Crosscountry bike. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
Average weight for Crosscountry bikes
Crosscountry bikes weigh an average of 12.4 kg (27.34 lbs). A lighter bike will give you some extra advantage when climbing. A heavier bike will have more speed for descents.
Author Impulse ASL it’s weighing 14.3 kg (31.53 lbs). At this weight, is much heavier than average. In conclusion, the average Crosscountry bike weighs 15.32% less than Impulse ASL.
Overview of components
Fork
The Impulse ASL comes factory-installed with the RST GILA fork. This has a travel range of 100mm. Bike forks absorb the shocks and give you a smooth and pleasant ride. In short, you should always ensure you have a good fork when purchasing a bike.
Wheels size
When leaving the production line, the Impulse ASL model has 27.5″ aluminum wheels. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, you can ride your bike with confidence.
Sizes
This bike is available in 3 sizes. They vary from 140 cm – 188 cm (4.59 ft – 6.17 ft). In conclusion, you won’t have a problem finding one that suits you.