Jamis HELIX A2 2019
2019 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. Jamis launched 11 bikes of this model so far. Take a sneak peek at all Jamis Helix bikes models from 2019, by clicking here.
Model range prices
Jamis HELIX A2 2019 is the cheapest bike model and costs 499$. Jamis HELIX A1 2019 is the most expensive one and costs 599$.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Crosscountry bikes
If you want to purchase a solid Crosscountry bike, it is important to know that the average cost is 1905$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Crosscountry bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
This bike was released in 2019 and its price was 499$. Comparing the average cost of a Crosscountry bike to this one, you will see that HELIX A2 price is 281.76% lower.
Average weight for Crosscountry bikes
On a deeper look, we notice that the average weight of a Crosscountry bike is 12.4 kg (27.34 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
HELIX A2 weighs 14.51 kg (31.99 lbs) and is much heavier than the average. In short, the average Crosscountry bike weight is 17.02% lower than this one.
Overview of components
Fork
This bike has the SunTour fork installed. The fork’s travel is 100mm. Bike forks are great for shock absorption and provide you with a smooth 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 size
When leaving the production line, the HELIX A2 model has 27.5″ aluminum wheels. These wheels will provide you with more control over the bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The HELIX A2 comes with Mechanical Disc brakes. They are much easier to maintain than hydraulic disk brakes. However, with hydraulic disk brakes, you have the ultimate braking power!