Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 27.5" -
Travel Front 100mm -
Fork RST AERIAL
-
Groupset Deore, Shimano -
Suspension Hardtail -
Drivetrain 2 × 10 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
15"
145cm - 158cm
17"
155cm - 172cm
19"
170cm - 185cm
21"
182cm - 200cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
double butted hydroformed alloy 6061 27.5"
Suspension Fork
RST Aerial 27.5 TnL air, lock out (100 mm)
Drivetrain
Rear Derailleur
SHIMANO Deore
Front Derailleur
SHIMANO Deore (34.9)
Shift Levers
SHIMANO Deore (20)
Cassette
SHIMANO HG500-10 11-42 (10)
Crank
SHIMANO 38-24 teeth 170 / 175 mm cranks
Chain
KMC X10
Pedals
AUTHOR alloy
Wheels
Front Hub
AUTHOR Radon 32 holes
Rear Hub
AUTHOR Radon 32 holes
Rims
AUTHOR Xenon Pro 27.5 32 holes
Spokes
black stainless steel 2.0 mm
Tires
VITTORIA Barzo kevlar 27.5" x 2.25"
Brakes
Brakes
TEKTRO Gemini disc hydraulic (6" rotors)
Cockpit
Stem
AUTHOR alloy
Handlebar
AUTHOR 9° 660 / 680 mm
Grips
AUTHOR Pro Lock
Seat
Saddle
AUTHOR Navigator
Seatpost
AUTHOR alloy (31.6)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 15" | 17" | 19" | 21" |
|---|---|---|---|---|
| Stack Reach Ratio | 1.63 mm | 1.58 mm | 1.51 mm | 1.47 mm |
| Bottom Bracket Height | 320 mm | 320 mm | 320 mm | 320 mm |
| Front Center | 623 mm | 643 mm | 668 mm | 688 mm |
| Rake | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 89 mm | 89 mm | 89 mm | 90 mm |
| Stack | 588 mm | 597 mm | 602 mm | 611 mm |
| Reach | 360 mm | 377 mm | 400 mm | 417 mm |
| Top Tube Length | 568 mm | 588 mm | 613 mm | 633 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 381 mm | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 69 ° | 69 ° | 69 ° | 69 ° |
| Head Tube Length | 115 mm | 125 mm | 130 mm | 140 mm |
| Chainstay Length | 433 mm | 433 mm | 433 mm | 433 mm |
| Wheelbase | 1054 mm | 1074 mm | 1099 mm | 1119 mm |
| Bottom Bracket Drop | 35 mm | 35 mm | 35 mm | 35 mm |
| Wheels | 27" | 27" | 27" | 27" |
| Rider Min Height | 145 cm | 155 cm | 170 cm | 182 cm |
| Rider Max Height | 158 cm | 172 cm | 185 cm | 200 cm |
About this model
Traction 27.5 is part of the Author Traction model. There are 30 bikes that carry this model name. Take a sneak peek at all Author Traction bikes models from 2019, by clicking here.
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.
Average price for Crosscountry bikes
Our math shows that the average cost of a dependable Crosscountry bike is 1905$. However, you could also get a good Crosscountry bike even if you pay a lower amount than the average price. 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
If we make a quick analysis of the average weight of a Crosscountry bike, we get 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.
Author Traction 27.5 it’s weighing 12.7 kg (28 lbs). At this weight, is slightly heavier than average. In conclusion, the average Crosscountry bike weighs 2.42% less than Traction 27.5.
Overview of components
Fork
The RST AERIAL 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
When it comes to wheels, the Traction 27.5 bike is equipped with the 27.5″ aluminum model. The 27.5″ wheels are a great choice for smaller riders. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Author Traction 27.5 is equipped with Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
Sizes
Author Traction 27.5 bike has 4 sizes, in the range of 145 cm – 200 cm (4.76 ft – 6.56 ft). In short, you can easily find one that suits you.