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.
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 TY700 (34.9)
Shift Levers
SHIMANO Altus (24)
Cassette
SHIMANO HG200-8 12-32 (8)
Crank
PROWHEEL 42-34-24 teeth 170 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 Speed Master 27.5" x 2.00"
Brakes
Brakes
TEKTRO disc hydraulic (6" rotors)
Cockpit
Stem
AUTHOR alloy
Handlebar
AUTHOR 8° 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 |
Model Overview
Impulse ASL completes the Author Impulse model. 25 bikes variations carry this model name so far. You can easily view all of the Author Impulse bikes models from 2017, here.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Crosscountry bikes average price
Our math shows that the average cost of a dependable Crosscountry bike is 1905$. However, even though the average price of a Crosscountry bike is lower, you might still be able to get a top-quality 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 have an average weight 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.
With a weight of 14.3 kg (31.53 lbs), Author bike 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. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Wheels
When it comes to wheels, the Impulse ASL bike is equipped with the 27.5″ aluminum model. The 27.5″ wheels are a great choice for smaller riders. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
For your safety, it is important to have quality breaks on your bike. Author Impulse ASL has Hydraulic Disc brakes installed. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.
Sizes
There are 3 sizes available for this model. Rider height can be anywhere between 140 cm – 188 cm (4.59 ft – 6.17 ft). In short, it won’t be difficult to find the right one for you.