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 - 170cm
18"
168cm - 185cm
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 Z8.3
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" × 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" |
|---|---|---|---|
| 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 | 649 mm |
| Rake | 44 mm | 44 mm | 44 mm |
| Trail | 83 mm | 86 mm | 97 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 | 442 mm | 442 mm | 442 mm |
| Wheelbase | 1050 mm | 1071 mm | 1087 mm |
| Bottom Bracket Drop | 45 mm | 45 mm | 45 mm |
| Wheels | 27" | 27" | 27" |
| Rider Min Height | 140 cm | 155 cm | 168 cm |
| Rider Max Height | 158 cm | 170 cm | 185 cm |
Model Overview
Impulse 27.5 ASL belongs to the Author Impulse model. 25 bikes variations carry this model name so far. Check out the entire range from 2022 of this model, by clicking this link.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Crosscountry bikes
According to our calculations, the average cost of a Crosscountry bike that is reliable 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.
Crosscountry bikes average weight
Crosscountry bikes have an average weight of 12.4 kg (27.34 lbs). You will have a greater advantage on climbs if your bike is easier than the average. On descents, however, a heavier bike will give you extra speed.
Author Impulse 27.5 ASL it’s weighing 13.9 kg (30.64 lbs). At this weight, is considerably heavier than average. In conclusion, the average Crosscountry bike weighs 12.1% less than Impulse 27.5 ASL.
Impulse 27.5 ASL components
Fork
The Impulse 27.5 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 size
The wheels on Impulse 27.5 ASL are the 27.5″ aluminum type. 27.5″ wheels will reach higher speeds than smaller-sized wheels. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Impulse 27.5 ASL comes with 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
Impulse 27.5 ASL comes in 3 sizes, that range from 140 cm – 185 cm (4.59 ft – 6.07 ft). In short, you can easily find one that suits you.