Jamis EXPLORER A1 2020
2020 Urban
Estimate price |
549$
Weight | 15.65 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 650b -
Travel Front 80mm -
Fork SunTour
-
Groupset Tourney, Shimano -
Suspension Hardtail -
Drivetrain 3 × 8 -
Brakes Rim
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
6061 TIG-welded aluminum, all-new sport comfort design with upright ride position, replaceable derailleur hanger, center-mount kickstand bracket
Suspension Fork
SR Suntour XCE 27.5", coil spring, external preload adjustor, 28mm stanchions, aluminum lowers, 80mm travel
Drivetrain
Rear Derailleur
Shimano TX-800 rear, Shimano TY710 31.8mm top swing/dual pull front
Shift Levers
Shimano EZ-Fire Plus, ST-EF510, 24-speed
Cassette
Shimano HG20, 8-speed, 12-32
Crank
SR Suntour XCC-T208, 48/38/28T, 170mm with chainguard
Bottom Bracket
Sealed cartridge, 68 x 110.5mm
Chain
KMC Z7
Pedals
Comfort platform with TPE non-slip insert
Wheels
Rims
Double-wall alloy rims, 32H, alloy hubs with QR, 14g stainless steel spokes
Tires
CST - 1918, 27.5 x 2.1
Brakes
Brakes
Tektro forged alloy direct pull brakes with Shimano levers
Cockpit
Stem
Jamis alloy, angle-adjustable, 90mm ext x 150mm quill (14–18") or 110mm ext x 180mm quill (19–21”)
Handlebar
Comfort hi-rise, alloy 25.4 x 80mm rise x 15? sweep x 620mm
Grips
Kraton comfort
Headset
Internal cup, threaded, 1 1/8”
Seat
Saddle
Jamis Comfort with memory foam, synthetic suede top, burnished side panels and bumper springs
Seatpost
Suspension, alloy micro-adjust, 350mm x 27.2mm, with alloy QR clamp
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 15" | 17" | 19" | 21" |
|---|---|---|---|---|
| Bottom Bracket Height | 284 mm | 284 mm | 284 mm | 284 mm |
| Rake | 42 mm | 42 mm | 42 mm | 42 mm |
| Top Tube Length | 563 mm | 585 mm | 596 mm | 615 mm |
| Seat Tube Angle | 71 ° | 71 ° | 71 ° | 71 ° |
| Seat Tube Length | 381 mm | 432 mm | 483 mm | 533 mm |
| Head Tube Angle | 69 ° | 70 ° | 70 ° | 70 ° |
| Head Tube Length | 135 mm | 165 mm | 184 mm | 210 mm |
| Chainstay Length | 448 mm | 448 mm | 448 mm | 448 mm |
| Wheelbase | 1053 mm | 1064 mm | 1075 mm | 1095 mm |
| Standover Height | 716 mm | 782 mm | 822 mm | 868 mm |
| Wheels | 650 | 650 | 650 | 650 |
About this model
EXPLORER A1 completes the Jamis Explorer model. 16 bikes variations carry this model name so far. You can get a glimpse at all models from 2020, by clicking on this link.
Model range prices
Jamis EXPLORER A2 STEP-THRU 2020 is the most economical model, with a starting price of 449$. Jamis EXPLORER A1 2020 on the other hand costs 549$, and is the most expensive model.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
Average price for Comfort bikes
According to our calculations, the average cost of a Comfort bike that is reliable is 360$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Comfort bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 549$. In conclusion, this bike price is 52.5% more expensive than the price of the average Comfort bike.
Comfort bikes average weight
If we make a quick analysis of the average weight of a Comfort bike, we get 15.11 kg (33.31 lbs). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
With a weight of 15.65 kg (34.5 lbs), Jamis bike is slightly heavier than average. To sum up, it’s 3.57% heavier than the average weight of Comfort bikes.
Overview of components
Fork
The EXPLORER A1 comes factory-installed with the SunTour fork. This has a travel range of 80mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In short, you should always ensure you have a good fork when purchasing a bike.
Fork material
When it comes to the fork, this bike has an aluminum one, which doesn’t add too much extra weight to the bike. However, it is not so stiff as steel or carbon forks are.
Wheels size
As for the wheels, Jamis EXPLORER A1 2020, has a aluminum model. After 700c wheels, 650b is the second most popular choice for road bikes. However, if speed is what you’re after, 700c wheels are a better fit.
Brakes
When you want to stop the bike in time, the brakes are vital. The EXPLORER A1 has Rim brakes. Rim brakes deliver an average performance overall. However, you could spend a little extra and get a bike that has hydraulic brakes.