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 |
About this model
Impulse ASL is an Author Impulse model. Author released 25 bikes variations of this model so far. You can get a glimpse at all models from 2018, by clicking on this link.
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.
Crosscountry bikes average price
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. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Average weight for Crosscountry bikes
On a deeper look, we notice that the average weight of a Crosscountry bike is 12.4 kg (27.34 lbs). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
Author Impulse ASL it’s weighing 14.5 kg (31.97 lbs). At this weight, is much heavier than average. To sum up, it’s 16.94% heavier than the average weight of Crosscountry bikes.
Overview of components
Fork
Author Impulse ASL 2018 bike is equipped with the RST GILA fork, and has 100mm travel. Bike forks absorb the shocks and give you a smooth and pleasant ride. In conclusion, always look for a fork with decent travel when you buy a bike.
Wheels size
The wheels on Impulse ASL are the 27.5″ aluminum type. The 27.5″ wheels are a great choice for smaller riders. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Author Impulse ASL is equipped with Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.
Sizes
This bike is available in 3 sizes. They vary from 140 cm – 188 cm (4.59 ft – 6.17 ft). In short, you can easily find one that suits you.