Jamis EXPLORER A1 STEP-THRU 2021
2021 Urban
Estimate price |
599$
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
Shimano TY301, 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 | 14" | 16" | 18" |
|---|---|---|---|
| Bottom Bracket Height | 284 mm | 284 mm | 284 mm |
| Rake | 42 mm | 42 mm | 42 mm |
| Top Tube Length | 562 mm | 584 mm | 601 mm |
| Seat Tube Angle | 72 ° | 71 ° | 71 ° |
| Seat Tube Length | 356 mm | 406 mm | 457 mm |
| Head Tube Angle | 69 ° | 69 ° | 70 ° |
| Head Tube Length | 140 mm | 150 mm | 160 mm |
| Chainstay Length | 457 mm | 457 mm | 457 mm |
| Wheelbase | 1064 mm | 1074 mm | 1079 mm |
| Standover Height | 488 mm | 494 mm | 491 mm |
| Wheels | 650 | 650 | 650 |
Model Overview
EXPLORER A1 STEP-THRU completes the Jamis Explorer model. Jamis released 16 bikes variations of this model so far. You can get a glimpse at all models from 2021, by clicking on this link.
Model range prices
Jamis EXPLORER A2 STEP-THRU 2021 is the most affordable bike of this model and has a price of 499$. On the other hand, Jamis EXPLORER A1 2021, is the most expensive and costs 649$.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Comfort bikes average price
According to our calculations, the average cost of a Comfort bike that is reliable is 360$. However, you could also get a good Comfort bike even if you pay a lower amount than the average price. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
At the moment of the release date, Jamis EXPLORER A1 STEP-THRU price was 599$. Comparing the average cost of a Comfort bike to this one, you will see that EXPLORER A1 STEP-THRU price is 66.39% higher.
Comfort bikes average weight
On a deeper look, we notice that the average weight of a Comfort bike is 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.
Jamis EXPLORER A1 STEP-THRU it’s weighing 15.65 kg (34.5 lbs). At this weight, 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 SunTour is included from the factory. It has a travel distance of 80mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Fork material
EXPLORER A1 STEP-THRU has an aluminum fork, so there won’t be much extra weight added to the bike. However, they are not so stiff as carbon forks are.
Wheels size
The wheels on EXPLORER A1 STEP-THRU are the aluminum type. 650b wheels make a great choice if you want to sacrifice speed for comfort. However, they don’t perform so well when you go over bumps and obstacles.
Brakes
Nothing is more important on a bike than its ability to brake properly. Jamis EXPLORER A1 STEP-THRU is equipped with Rim brakes. Rim brakes deliver an average performance overall. However, you could spend a little extra and get a bike that has hydraulic brakes.