Bike details
Key information split into simple groups.
Bike summary
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Category
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Frame Aluminum
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Wheels 27.5"
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Travel Front 100mm
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Fork RST GILA
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Groupset Altus, Tourney
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Suspension Hardtail
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Drivetrain 3 × 8
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Brakes Hydraulic Disc
Recommended size guide.
14"
140cm - 158cm
16"
155cm - 173cm
18"
170cm - 188cm
Parts list
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 Z8.1
Pedals
resin
Wheels
Front Hub
QUANDO Disc 32 holes
Rear Hub
QUANDO Disc 32 holes
Rims
AUTHOR Xenon 27.5 32 holes
Spokes
hi-ten black
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
Numbers for sizing and ride feel.
| Size | 14" | 16" | 18" |
|---|---|---|---|
| Stack Reach Ratio | 1.65 mm | 1.62 mm | 1.55 mm |
| Bottom Bracket Height | 310 mm | 310 mm | 310 mm |
| Front Center | 612 mm | 633 mm | 659 mm |
| Rake | 68 mm | 68 mm | 68 mm |
| Trail | 83 mm | 86 mm | 86 mm |
| Stack | 609 mm | 616 mm | 626 mm |
| Reach | 368 mm | 381 mm | 403 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 | 1087 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 27.5 is an Author Impulse model. Author released 25 bikes variations of this model so far. Check out the entire range from 2020 of this model, by clicking 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
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. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Average weight for Crosscountry bikes
The average weight for Crosscountry bikes is 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.
considerably heavier than average, Impulse ASL 27.5 has a weight of 13.9 kg (30.64 lbs). In short, the average Crosscountry bike weight is 12.1% lower than this one.
Overview of components
Fork
This bike has the RST GILA fork installed. The fork’s travel is 100mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In conclusion, always look for a fork with decent travel when you buy a bike.
Wheels size
The Impulse ASL 27.5 2020 bike is equipped with 27.5″ aluminum wheels when leaving the factory. These wheels will provide you with more control over the bike. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Impulse ASL 27.5 comes with Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, these are ideal for anyone.
Sizes
Impulse ASL 27.5 comes in 3 sizes, that range from 140 cm – 188 cm (4.59 ft – 6.17 ft). In short, you can easily find one that suits you.
