Jamis HELIX A1 2021
2021 Mountain
Estimate price |
779$
Weight | 14.17 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 27.5" -
Travel Front 100mm -
Fork SunTour XCT
-
Groupset microSHIFT Advent -
Suspension Hardtail -
Drivetrain 1 × 9 -
Brakes Hydraulic 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 XCT 30 HLO 27.5”, coil spring, hydraulic speed lock out adjust, external preload adjustor, 30mm stanchions, aluminum lowers, 100mm travel
Drivetrain
Rear Derailleur
microSHIFT Advent M6195M 9-speed
Shift Levers
microSHIFT Advent M8195, 1×9-speed
Cassette
microSHIFT H093, 9-speed, 11-42T
Crank
Forged Alloy, 32T
Bottom Bracket
Sealed cartridge
Chain
KMC X9, 9-speed
Pedals
MTB platform, hi-impact resin
Wheels
Rims
Alex TD26 27.5” double wall rims, 32H, alloy disc hubs, 14G black electroplated spokes
Tires
CST Patrol, 27.5 x 2.25”
Brakes
Brakes
Shimano MT200 hydraulic disc, Shimano RT26 160mm rotors
Cockpit
Stem
Jamis XC alloy threadless, 31.8 x 10 ? rise x 75mm (14”/16”), 90mm (18”)
Handlebar
Jamis XC alloy riser, 31.8 x 20mm rise x 680mm
Grips
Kraton
Headset
Zero-stack internal cup, 8mm cone spacer
Seat
Saddle
Jamis ATB Sport Women’s
Seatpost
Jamis alloy micro-adjust, 31.6 x 350mm (14”) 400mm (16”/18”)
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 A1 completes the Jamis Helix model. There are 11 bikes that carry this model name. Check out the entire range from 2021 of this model, by clicking this link.
Model range prices
Jamis HELIX A2 2021 is the most affordable bike of this model and has a price of 679$. On the other hand, Jamis HELIX A1 2021, is the most expensive and costs 779$.
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.
Crosscountry bikes average price
According to our math, the average price for a trustworthy Crosscountry bike is 1905$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Crosscountry bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
When Jamis released this model in 2021, its price was 779$. Doing a quick comparison, we notice that HELIX A1 price is 144.54% smaller than the average cost of a Crosscountry bike.
Crosscountry bikes average weight
Crosscountry bikes weigh an average of 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.
Weighing 14.17 kg (31.24 lbs), the HELIX A1 model is considerably heavier than average. To sum up, it’s 14.27% heavier than the average weight of Crosscountry bikes.
Overview of components
Fork
Jamis HELIX A1 2021 bike is equipped with the SunTour XCT fork, and has 100mm travel. Bike forks absorb the shocks and give you a smooth and pleasant ride. 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 is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels size
When leaving the production line, the HELIX A1 model has 27.5″ aluminum wheels. 27.5″ wheels are a mixture between 29″ wheels and 26″ wheels. However, the 27.5″ wheels are less forgiving than the 29″ wheels.
Brakes
When you want to stop the bike in time, the brakes are vital. The HELIX A1 has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, you can ride your bike with confidence.