Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 26" -
Travel Front 80mm -
Fork RST CAPA
-
Groupset Tourney, Altus -
Suspension Hardtail -
Brakes Mechanical Disc
Sizing
Recommended size guide.
17"
155cm - 171cm
19"
169cm - 186cm
21"
184cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
alloy 6061 26"
Suspension Fork
RST Capa T (80 mm)
Drivetrain
Rear Derailleur
SHIMANO TX55
Front Derailleur
SHIMANO TX50 (31.8)
Shift Levers
SHIMANO Altus (21)
Cassette
SHIMANO MF-TZ21 14-28 (7)
Crank
PROWHEEL 42-34-24 teeth 170 / 175 mm cranks
Chain
KMC Z51
Pedals
resin
Wheels
Front Hub
QUANDO 36 holes
Rear Hub
QUANDO 36 holes
Rims
alloy 36 holes
Spokes
steel
Tires
CST Classic Venice 26" x 2.00"
Brakes
Brakes
TEKTRO 855
Cockpit
Stem
ZOOM adjustable
Handlebar
steel 42 mm 620 / 640 mm
Grips
AUTHOR high density foam
Seat
Saddle
AUTHOR Courier
Seatpost
ZOOM suspension (27.2)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 17" | 19" | 21" |
|---|---|---|---|
| Bottom Bracket Height | 298 mm | 298 mm | 298 mm |
| Front Center | 623 mm | 634 mm | 644 mm |
| Rake | 38 mm | 38 mm | 38 mm |
| Top Tube Length | 548 mm | 558 mm | 568 mm |
| Seat Tube Angle | 75 ° | 75 ° | 75 ° |
| Seat Tube Length | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 71 ° | 71 ° | 71 ° |
| Head Tube Length | 150 mm | 160 mm | 170 mm |
| Chainstay Length | 428 mm | 428 mm | 428 mm |
| Wheelbase | 1047 mm | 1058 mm | 1068 mm |
| Bottom Bracket Drop | 45 mm | 45 mm | 45 mm |
| Wheels | 26" | 26" | 26" |
| Rider Min Height | 155 cm | 169 cm | 184 cm |
| Rider Max Height | 171 cm | 186 cm | 195 cm |
Model Overview
Opus completes the Author Opus model. There are 4 bikes that carry this model name.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
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, 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). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
Weighing 15 kg (33.07 lbs), the Opus model is much heavier than average. To sum up, it’s 20.97% heavier than the average weight of Crosscountry bikes.
Opus components
Fork
Author Opus 2015 bike is equipped with the RST CAPA fork, and has 80mm travel. Bike forks absorb the shocks and give you a smooth and pleasant ride. In short, you should always ensure you have a good fork when purchasing a bike.
Wheels size
When leaving the production line, the Opus model has 26″ aluminum wheels. Being a little smaller, these wheels will fit both small and tall riders. However, you will need increased suspension than in the case of 29″ wheels.
Brakes
For your safety, it is important to have quality breaks on your bike. Author Opus has Mechanical Disc brakes installed. They deliver good performance and cost less than hydraulic disk brakes. However, they don’t have the stopping power of hydraulic brakes.
Sizes
Author Opus bike has 3 sizes, in the range of 155 cm – 195 cm (5.09 ft – 6.4 ft). In short, it won’t be difficult to find the right one for you.