The JC20 is a solid performer
that will do what you ask of it … and then some. Let me pick a few
highlights from the overall package. You’ve got the choice of 3 setups:
27 speed, 30 speed, or XT if you’re looking for that extra degree of
snapiness in your shifting. You’ll also enjoy the aircraft-grade 7005
aluminum—lightweight but rigid with durability that’s off the charts.
The
27 speed comes with a FRP (Fiber Reinforced Plastic) seat base with a
cushion mesh to settle back into. And if you want a full-mesh seat
experience, that’s available as well.
The
crank will give you a voluminous 52/11 combination for a warp-speed run
along the flat or downhill. At the other end of the scale the 30/34
will have you tackling the toughest grades with ease. You might not get
to the top of the grade in record time—but you WILL get there, with
energy to spare and having enjoyed the ascent to boot.
The
30 speed sports Avid BB5 mechanical disc brakes for a smoother and more
powerful braking experience. The 27s Novela mechanical disc brakes does
the job too. It’s just with the Avid, you can skimp on the stopping
distance a bit more. Since you’ve basically got a Tiagra setup, the 10
speed cassette allows you more options and, in concert with the crank
gives you Shimano to Shimano compatibility. Tiagra has evolved into an
awesome groupset over the years and is the perfect choice for a 10 speed
solution.
The “XT” comes
with the Shimano XT rear derailleur. With the JC20 XT option you also
get what is arguably the best non-hydraulic disc brake around, TRP’s
SPYRE. This dual piston actuated mechanical disc brake means an
extremely short stopping distance. The dual piston means the rotor will
not flex to one side during braking meaning even pad wear.
And
for the DIYers, the JC20 frameset is also available. This includes the
frame, cross-frame, boom, headset, Ubar, steering, tierod, idlers,
chaintube and seat bracket.