Jamis HELIX A2 2020
2020 Mountain
Estimate price |
499$
Weight | 14.51 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 27.5" -
Travel Front 100mm -
Fork SunTour
-
Groupset Tourney, Shimano -
Suspension Hardtail -
Drivetrain 3 × 7 -
Brakes Mechanical Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
6061 aluminum main tubes, over-sized seat tube, zero-stack head tube, over-sized stays, replaceable derailleur hanger
Suspension Fork
SR Suntour XCE 28 DS 27.5”, coil spring, external preload adjustor, 28mm stanchions, aluminum lowers, 100mm travel
Drivetrain
Rear Derailleur
Shimano TY300
Front Derailleur
TY500
Shift Levers
Shimano EF41, 3x7-speed
Cassette
Shimano TZ500, 7-speed, 14-34T
Crank
Forged alloy, 42/34/24T
Bottom Bracket
Sealed cartridge
Chain
KMC Z51, 7-speed
Pedals
MTB platform, hi-impact resin
Wheels
Rims
Alex TD26 27.5” rims, 32H, alloy 6-bolt disc hubs, 14G nickel-plated spokes
Tires
CST Patrol, 27.5 x 2.25”
Brakes
Brakes
Tektro M280 mechanical disc, 160mm rotors and Shimano levers
Cockpit
Stem
Jamis XC alloy threadless, 31.8 x 10? rise x 70mm (15/17”), 90mm (19”/21”)
Handlebar
Jamis XC alloy riser, 31.8 x 20mm rise x 720mm
Grips
Kraton
Headset
Zero-stack internal cup threadless, 15mm cone spacer
Seat
Saddle
Jamis ATB Sport, SL cover, protective front and rear guards
Seatpost
Jamis alloy micro-adjust, 31.6 x 350mm (15”) 400mm (17”-21”)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 14" | 16" | 18" |
|---|---|---|---|
| Bottom Bracket Height | 309 mm | 309 mm | 309 mm |
| Front Center | 598 mm | 619 mm | 639 mm |
| Top Tube Length | 547 mm | 567 mm | 587 mm |
| Seat Tube Angle | 72.5 ° | 72.5 ° | 72.5 ° |
| Seat Tube Length | 356 mm | 406 mm | 457 mm |
| Head Tube Angle | 70 ° | 70 ° | 70 ° |
| Head Tube Length | 105 mm | 110 mm | 120 mm |
| Chainstay Length | 442 mm | 442 mm | 442 mm |
| Wheelbase | 1036 mm | 1057 mm | 1077 mm |
| Bottom Bracket Drop | 46 mm | 46 mm | 46 mm |
| Standover Height | 675 mm | 711 mm | 738 mm |
| Wheels | 27" | 27" | 27" |
Model Overview
HELIX A2 completes the Jamis Helix model. 11 bikes variations carry this model name so far. Take a sneak peek at all Jamis Helix bikes models from 2020, by clicking here.
Model range prices
The most economical model, the Jamis HELIX A2 2020 has a starting price of 499$. Jamis HELIX A1 2020 on the other hand is the most expensive at 599$.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Crosscountry bikes average price
According to our calculations, the average cost of a Crosscountry bike that is reliable is 1905$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Crosscountry bike. In short, before purchasing your ideal bike do some research about its components, and also check for reviews online.
This bike was released in 2020 and its price was 499$. In conclusion, this bike price is 281.76% smaller than the price of the average Crosscountry bike.
Crosscountry bikes average weight
If we make a quick analysis of the average weight of a Crosscountry bike, we get 12.4 kg (27.34 lbs). An easier bike will give you a big advantage in climbs. However, a heavier bike can gain speed when you descend.
With a weight of 14.51 kg (31.99 lbs), Jamis bike is much heavier than average. To sum up, it’s 17.02% heavier than the average weight of Crosscountry bikes.
HELIX A2 components
Fork
The HELIX A2 comes factory-installed with the SunTour fork. This has a travel range 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.
Fork material
The fork is made out of aluminum, so there won’t be much extra weight added to the bike. However, they are not so stiff as carbon forks are.
Wheels
When it comes to wheels, the HELIX A2 bike is equipped with the 27.5″ aluminum model. These wheels will provide you with more control over the bike. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Jamis HELIX A2 is equipped with Mechanical Disc brakes. These brakes are also very popular, and a lot cheaper than hydraulic disk brakes. However, with hydraulic disk brakes, you have the ultimate braking power!