Jamis EXPLORER A1 STEP-THRU 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 | 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 |
About this model
EXPLORER A1 STEP-THRU belongs to the Jamis Explorer model. There are 16 bikes that carry this model name. Take a sneak peek at all Jamis Explorer bikes models from 2020, by clicking here.
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
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.
Average price for Comfort bikes
According to our math, the average price for a trustworthy Comfort bike is 360$. However, even if your budget is less than the average, you might still be able to get a top-quality Comfort bike. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
This bike was released in 2020 and its price was 549$. Doing a quick comparison, we notice that EXPLORER A1 STEP-THRU price is 52.5% higher than the average cost of a Comfort bike.
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). You will have a greater advantage on climbs if your bike is easier than the average. On descents, however, a heavier bike will give you extra speed.
Weighing 15.65 kg (34.5 lbs), the EXPLORER A1 STEP-THRU model is slightly heavier than average. In short, the average Comfort bike weight is 3.57% lower than this one.
Overview of components
Fork
Jamis EXPLORER A1 STEP-THRU 2020 bike is equipped with the SunTour fork, and has 80mm travel. Bike forks absorb the shocks and give you a smooth and pleasant ride. In short, make sure you choose one with a decent fork when you purchase your dream bike.
Fork material
The fork on this bike is made out of aluminum, which is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels
The wheels on EXPLORER A1 STEP-THRU are the aluminum type. The 650b wheels are very similar to 700c, with a slight difference in diameter. However, if you want higher speeds, you should look for a bike with 700c wheels.
Brakes
When you want to stop the bike in time, the brakes are vital. The EXPLORER A1 STEP-THRU has Rim brakes. Slightly lighter than hydraulic brakes, rim brakes are a budget choice. However, you could spend a little extra and get a bike that has hydraulic brakes.