Let’s start pretending, that something is actually happening on Krzywe Koło and I’m not neglecting it completely and entirely.
I know, I know… SSEC article is still not published, and my long overdue interview with Jeroen from European Mountain Bike is snoozing on the SD Card. Sorry man, I promise I will put it in. Hopefully soon. Cross my heart…
Anyways… 12 speed is all rave, vogue , jezzy and peachy those days, isn’t it? I still love my front mech and low gear of 0.61111 compliment of 36t cassette and 22t „granny”. However, even such a Luddite like me is slowly absorbing novelties.
So why not give it a try, especially that Cool Kid on the Block, Sunrace, finally is offering whole 12speed groupset, compatible with standard Shimano freehub body on these shores. Fast forward 225 quid including postage and I was playing with shiny new bits.
Few facts and figures.
Groupset consists of:
Rear derailleur RDMX60 – that is middle of the pack version. Below sits basic MS30, above MZ80 with spanking carbon fiber cage outer plate. Declared weight 278g, on my digital, kitchen scale 274g 🙂
Trigger shifter DLMZ3X – 3 options available. Standard band (mine), Shimano I-Spec II compatible and standard band with gear indicator. Declared weight 125g, mine was 134g but with cable so probably again a tad better. Upshift you can do up to 4 gears at one push, downshift either by thumb or by index finger – dual release lever.
11/50, 12 speed cassette CSMZ90 in silver – black option also available. There is also CSMZ91 cassette with 10/50 range that, I’m guessing, fits into Sram XD Drive freehub. Declared weight 586g, mine tipped scale at 527g. That is whooping 59g less, that is respectful 10% 😀 Gearing flow as below: 11-13-15-17-19-21-24-28-32-36-42-50. So tight on the bottom end with distinct jumps in the upper level. 7 cogs, in 2 clusters 4 and 3 on alloy spiders, 42 and 50t sprocket made of 7075 alloy, all spacers and lockring alloy as well.
Last but not least 12 speed chain CN12S with quick, reusable link. 126 links long, so plenty to play with. There is also bling version of the chain, with hollow pins and golden or black Titanium Nitride coating. Declared weight for 110 links chain is 250g. Mine, at full length, in the bag and with little instruction still inside came at 277g so not too shabby.
Full set of pictures at: Sunrace 12 speed groupset
Truth to be told it is not full groupset as I haven’t got FCMX00 crank. Good ‚ole Middleburn or XT will suffice.
Hoping to put it on Wycior at some point in next 2 weeks and test it after SSUK mid-September.
Am I going to feel 0.03 differense on the lowest gear? We shall see…