Another KMX...

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Cupples

Well-Known Member
Location
Whitehead
Hi everyone, I've been lurking for a while, but I thought I would post up some details. I picked up a KMX Typhoon (2017 model?) a couple of months ago out of curiosity (also, it was £310, so cheap) and I've been getting to grips with it since. It hadn't been used much, and I wanted to see if it would be practical for my (very short... 1mile!) commute and general relaxed pootling around. I usually ride uprights, and raced them up until a year ago, but I don't have the time to train at present, and it's nice not to have sore neck/shoulders after a ride.

So, I've been enjoying some aspects of trike ownership - the relaxed nature, seating position, the view! (admiring the stars on a clear night, not something I ever did on a DF!) The KMX is very comfy, even with swapping the large, cheap tyres for something narrower. And it moves fairly well, especially on the flat and downhill, but the gearing is a bit of a limiting factor. I was able to attach a rack fairly easily (a Topeak Super Tourist Disc that I had lying around), and attach a good front light (Decathlon VIOO 900, nice and bright!) with rubber bands - visibility is really important, I'm finding!

Some aspects - not so good. The KMX is a 1x8 setup, with 42T chainset and 11-34T cassette (24"-71"), which is ok - it gets me up a nearby 16% hill without my knees exploding, barely, but I really miss the high gears on the flat and downhills. I tried a 53/39 on the front, which helped, but there's no pillar for mounting a front mech to, so manual changing was a bit hair shirt... also it kept throwing the chain off going over bumps.
16" tyres! 306 size! What a pain. The only even semi-decent ones I could find were Schwalbe Road Cruisers, which are... not great. At least the 20" rear takes a Kojak.
Speed! These things aren't for collecting KOMs, are they? Should have saved up for a Windcheetah. But this is all that there was for sale in Northern Ireland!

So, my plans are:
- 56T chainset ordered from China for about £30.
- 11-40t 9 speed cassette ordered from China, for about £13.
- SunTour barend shifter run on friction setting, so I don't have to worry about compatibility, £10.
This should give loads of high gears, and lose a little off the low end (26"-95")
And at a later date....
- either rebuild front wheels onto 20" rims, or else buy wheels from KMX (£75 each, but they use proprietary hubs, it seems)
- some alternative arrangement for the front shifting - has anyone seen a FSA Metropolis Patterson chainset? 2 speed 28t/45t chainset, about £200.... hmm, the possibilities...

I will be asking questions about this setup soon!
Andrew
 
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cosmicbike

Perhaps This One.....
Moderator
Location
Egham
Welcome to the wonderful world of recumbent triking. I bought an ICE last year and really need to get out on it more
 

Andrew1971

Veteran
Location
Northallerton
@Cupples
What wheel size do you have on your KMX. I have now have 20inch front and 26inch rear They are a KMX Vemon wheels set. From KMX near £260 delivered then tyre's tube's and rim tape. The best upgrade i have done. If price is to steep just get the 2 front wheel's and a 700c for rear.
As i have about 1.5 inch with tyre on before it hits the frame.
Andrew
 
OP
OP
Cupples

Cupples

Well-Known Member
Location
Whitehead
Currently running 20" rear and 16" front. I'm contemplating getting the KMX 20 inch front wheels and getting a MTB rear wheel, or getting a couple of 20" rims and getting the existing wheels rebuilt; but I've just fitted mudguards all round, and I don't want to have to faff around with that again! I think if I was going to run larger wheels, I might just contemplate a lighter trike...
 
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