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 HD-M276, disc hydraulic (6" rotors)
Cockpit
Stem
AUTHOR alloy
Handlebar
AUTHOR rise 25 mm, 9°, 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 | 1.668 mm | 1.628 mm | 1.563 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 | 602 mm | 609 mm | 619 mm |
| Reach | 361 mm | 374 mm | 396 mm |
| Top Tube Length | 545 mm | 560 mm | 585 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 | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1043 mm | 1064 mm | 1080 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 |
About this model
Impulse 27.5 ASL belongs to the Author Impulse model. 29 bikes variations carry this model name so far. You can get a glimpse at all models from 2024, 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 to purchase a solid Crosscountry bike, it is important to know that the average cost 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. 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
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.
Impulse 27.5 ASL weighs 13.9 kg (30.64 lbs) and is considerably heavier than the average. To sum up, it’s 12.1% heavier than the average weight of Crosscountry bikes.
Impulse 27.5 ASL components
Fork
The RST GILA is included from the factory. It has a travel distance of 100mm. Bike forks are great for shock absorption and provide you with a smooth ride. To sum up, when buying a bicycle, make sure you get a fork that is capable of delivering decent travel.
Wheels size
The wheels on Impulse 27.5 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
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, you can ride your bike with confidence.
Sizes
This bike is available in 3 sizes. They vary from 140 cm – 185 cm (4.59 ft – 6.07 ft). In short, you can easily find one that suits you.