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Huka Challenge Jeff's Bike

Jeff’s Bike – Jeff’s Bike Blog: A real challenge


View from the window

The Huka 80km MTB challenge was to prove to be just that, a challenge. One of our 5 members didn’t know until 12pm whether he would make a work deadline, and then the pick-up deadline, luckily some slower than planned packing gave him the time bonus required. Then Marco had a spell in the drivers seat. More uncertainty. There was also a minor fly in the ointment when Marco realised he had left his camelbak holder at home. Botty. With a roll of duct tape he managed to fashion my new “eski-bag” spotprize into a passable camelbak. I am sure it wasn’t as light as the original though!

Bad norty elitist pedal : (

The wind seemed to follow us up from Wellington and it was a little bit brisk as we started the 15 minute trundle from the accommodation to the race start. Unfortunately 1 minute later Cleetus’s XTR pedal just fell off the end of the spindle. Bugger. What to do. Calling on his past as a proponent of one-legged drills the only option was for Cleetus to try to make it to town. For once I had my eftpos card on me and if we could find a bike shop open at 6.30am we might strike it lucky. I pushed him with my left hand while he jammed away with his left leg. The exposed bit along the front of the lake was pretty brutal. Fortune smiled on us and he found a shop and scored some new pedals with time to spare!

sus-pension-ers

The race started and it was up the hill and into the single track. Singletrack that just went on and on. It was awesome. It was a bit windy, but nothing like what Cleetus and myself experienced the week before while riding the “Skyline” track in Wellington. Before long there were ominous creaks and groans, then crashes in the trees. The trees were falling down in the forest. It was pretty damn freaky. Some of them were very very close. After a couple of hours the organisers decided to pull the pin before anyone was badly hurt. It was the right call. They cut out about 20kms of the course and we carried on, some continued hammering, some didn’t, it didn’t matter, it was race over : (

After we cleaned up we called into BushLove HQ for a bit of a bullshit and then endured the prizegiving and headed back to the digs for a beer and sossies.

A big thanks to Ash for the transport and the accommodation, and Matt-2 for his colourful stories.

I havent done “Taupo” for about 15 years so was blown away at how big it is now. We have unfinished work, so will probably be back next year, hopefully all the weak trees will be gone !



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cx Cyclo cross Jeff's Bike karate monkey Surly

Jeff’s Bike – Surly Karate Monkey second impressions


At Single Speed nationals with front 3.0 Knard

You
may have read my Surly Karate Monkey first impressions here. Now I am a few
months down the track I reckon its time to revisit and see what else I
have discovered with longer term ownership.

I
tend to think that the Karate Monkey is a tinkerers bike. I come from
the generation of people that grew up working on their own cars and
motorbikes, so its second nature to want to build their own bicycles.
Especially if there are budgetary constraints. If you are the kind of
person that buys a bike ready-made, and doesn’t enjoy messing with it,
then the Karate Monkey may not be for you. Why? Because there are so
many options for the person who enjoys getting their hands dirty. Building
my own bikes is a big part of the enjoyment that I get out of cycling,
and it helps with “mechanical empathy”. That link you have in knowing
how what you assembled effects how your bike hangs together, sounds and
feels. Some of my contraptions may not even look pretty, but they are my
babies, and you never tell anyone their baby is ugly : )

The
Karate Monkey was my first 29er, first drop-barred bike, and first
rigid bike (since the late 80’s), so you have to bear that in mind when
reading my findings. The reason I chose it was because of the many
options it gave me. I wanted to try a 29er, and apparently the Karate Monkey was one of the very first out there. Canti mounts meant that I could build it up with old
crap already lying around the shed, v-brakes, road wheels etc. In this
first iteration it was a very capable Cyclo cross machine as it weighed
in at a passable 24 pounds. (CX images from Craig Madsen).

For
the second build iteration of the Karate Monkey I picked up some cheap
wheels, complete with new tires and discs off trademe. With the addition of mechanical discs it rocketed up to around 28
pounds. The discs certainly took some getting used to. There is none of
the progressiveness associated with hydraulic discs – they are on or they
are off. On the trails of the Wainuiomata Trail Park the Karate Monkey
was great. It climbed awesomely and descended with confidence. At no
time did I think I would have been better off with a flat bar. In fact, I
suspect the drop bars may even have a little bit of suspension built
in, they certainly feel that way. Unfortunately I mis-read the course
signage in the race I was doing there, did an extra lap and dropped from
2nd to about 8th in my class by the races end.

One
thing you will notice with drop bars, you can be a bit limited with
braking set-ups. If you go with road levers you will need to get the
appropriate discs for them. I had some special road levers that had
normal MTB-style-pull so went with standard MTB discs. If I wanted to go
from the bar-end shifters to STI levers, I would have to get one of
these :
http://problemsolversbike.com/products/travel_agents/ or change to the road specific calipers. This is starting to sound more like its about drop bars than it is the Karate Monkey. I will try to keep on track.

There
are many strange things about the Karate Monkey. It is the
swiss-army-knife of bicycles, so in many ways it is a compromise. It can
take very fat tires, but there is little clearance for your front derailleur
or derailleur cable so you might have to use the “monkey-nuts” which push
the wheel more rearward in the horizontal drop-outs to give better
clearance up front. This in turn would negate the whole idea of having a
bent seat tube which is presumably to allow the wheel to be closer to
front for that legendary Karate Monkey cornering.  Of course if you go
single speed its not an issue. My widest rear tires have only been 2.0
inches so I haven’t had any issues at all. Personally I hate the
horizontal drop-outs which are a bit of pain when installing the rear
wheel, but apparently a big improvement on previous models. At least now
you don’t have to unbolt the disc calipers to change the wheel!

Something
which I think is a real mistake on the latest Karate Monkey is the
dropping of the canti bosses. They really gave you a lot more options. Mine
is the 16 inch model. I was concerned that the 18 inch, with drop bars
would be too long for me. With the 16, its great, but if I throw a
normal flat bar on it, it feels a bit short. Bear this in mind when
choosing frame sizes. I did a lot of research online for sizing, it did
not help. An 18 with a shorter stem may well have done the job even
better. Typically when using a drop-bar you are extending your cock-pit
length a fair bit so you need a shorter top-tube or a shorter stem.

Some
of the cable routing is not that great with the 16 inch frame, the
bottom triangle (because of that silly little gusset) is only 13.5
inches tall. Presumably it’s for a better standover height. This does
not leave much room to braze on a derailleur cable stop, hence you have
crazy loops of cable sticking up above the top tube, and a very steep
exit angle on your cable. Once again, not a problem if you are running
it singlespeed.

There is only the one cable stop on the Monkey which is intended to use
continuous cabling. I am not sure what I think about this. I am getting
used to it, should improve cable life in theory.

I
wasn’t really expecting to say anything good about a 2 and half pound
steel rigid fork. I was wrong. It goes exactly where you point it. There
is a lot of confidence to be gained from knowing that your wheel will
go where you want it to, and it wont in fact wallow down the side of a
rut and spit you off. As I said, I haven’t ridden a rigid fork since the
late 80’s, but I cant help but think that the 29 inch wheels make it
less of an issue. 

A good example of the merits of the wagon wheels came
to me the other day when riding the river bank section of the Crazyman
ride. There are a series of man made speed humps. When you hit them on
the 29er, you just launch off them. When I hit them on my 26er, they
really knock my speed back.

In
really tight single track the karate Monkey’s geometry is amazing. It
even turns better than my Santa  Superlight which is my best handling
bike to date. That’s with the drop bars on. I haven’t ridden it that much
with the flat bar on, although I can say unequivocally, the drop bar is
better for long descents as you only really have to brake, and not brake
AND grip the bar simultaneously. Gravity and the shape of the bar means
you can relax your grip and your hand wont slip off, or get arm pump to
the same extent. This is one of the main benefits of a drop bar. There I
go again. 

So
what else have I found out? Its the only bike Ive ever had to use a
proper head-set tool on. It was a tight fit. Luckily Marco had one
in his garage. The bottom bracket shell is 73mm wide and I am using a 113mm wide
spindled square taper BB on it, like most of my BB’s.

More things, not necessarily to do with the Monkey, but more the 29er format.
1. You can run MTB tires on Mavic Open pro road rims.
2. You can run road tires on 29er MTB rims.
3. If you flat, a 26 tube will fit a 29er tire no problem with a bit of care.

I
have had a lot of fun with this Bike. It handles really well, its very
robust, cheap and adaptable. I will probably ride it a bit more with the
flat bar on, then put the drops back on, then do some big day trips on
it, then maybe turn it into a singlespeed for a while.  I am interested
to see how the drop bars cope with the big leverage efforts you get when
SSIng. The “on the hoods” position on my current Woodchipper bar gives
excellent leverage for in the saddle efforts anyway.

At
around 5 and a half pounds for the frame, this is indicative of the
many steel hard tails that are turning up on the market. Cheap and robust, and heavier
than a lot of fullies. But if you are not suffering from weight
weenerism and you like messing with your own bike, then the Karate
Monkey promises hours of fun!

Other links. Worlds fastest Monkey. 

Karate Monkey First Impressions.

http://surlybikes.com/bikes/karate_monkey 

monkey with KNARD !



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