Hase Kettwiesel Tour
This page is about my Hase Kettwiesel Tour recumbent trike
and what modifications etc. I have made to it.
(See Hase Kettwiesel 1 for an
introduction to the trike, along with pros/cons and further links.)
Still riding a Kettwiesel every day to work (since March 2003). Still
very happy with closer spaced cassette.
April 2018: new seat fabric
Fit new seat cover: updated from pure net design to padded
multi-part. More comfort, but warmer in summer, and holds rain water !
November 2016: finally replace cassette (and chain)
Current cassette/chain almost unusablem so Finally remove cassette
with a long arm torque wrench, mole grp on axle (some damage) to
finally remove old one (11-34) and fit a closer ratio one (11-23).
November 2016: new tyres
Replace original Marathon Plus rear tyres with identical new ones:
zero punctures in 8 years town riding :-) Front tyre still OK.
April 2015: fit hydraulic brakes
Water ingress, mainly into cables (looped down), means the BB7 cable
brakes sometimes freeze in winter (but usually not both at same
time). Easily fixed by hanging cable indoors overnight.
But decide to fit Avid Elixer 3 (2 rear to get long enough cables),
use existing rotors and to reduce work do not trim cables but loop
them around under seat and zip-tie them.
Fiddly to adjust but then they work great !!
October 2011: grinding axle
Grinding feeling in right axle fixed by feeding plenty of oil in over
a couple of weeks !
June 2011: Fit Sun Tour ratchet friction lever (rear)
The indexing I guess is wearing out, so from my junk both fit an old
(1980s ?) fit Sun Tour ratchet friction bar-end lever. Works great !!
August 2009 and again June 2011: fail to remove cassette
Failed to remove cassette, even with a long arm torque wrench (would
like to fit a closer ratio one).
late 2010 or early 2011: Move GPS to main tube, and new mirror
What is says really: remove cut-off handlerbar extension, move GPS to
direct fit on main boom and fit long stem Busch und Muller Cyclestar
mirror to handlebar.
January 2011: New dynamo and tyres
Notice that the rear tyres worn through in places, so buy and fit
Schwalbe Marathon Plus 47 mm tyres (lightly loaded front tyre still
fine) (still going well, and no punctures, August 2012).
FER-2002 dynamo finally died, so buy a cheap Shimano Dynohub (3N30)
406 wheel on eBay. Fits no problem, and works great !!
September 2010: Fit short cranks
Following successful experiment on my Pashley
PDQ fit Thorn 140mm short
cranks. The PDQ just needed new cranks, but the Kett also needed a
new bottom bracket (110mm) to fit standard square tapered cranks (my
Kett had Shimano Hollowtech 2 originally fitted).
August 2010: Broken seat frame
Seat frame breaks whilst riding home from work: holds out till I get
home (I only continued riding because I knew that even with a total
seat collapse I would just drop a few cm onto the main frame tube, and
no risk of falling off !!)
Radgeber where I bought the trike from: they organise a
replacement from Hase and offer to fit it, all free of charge (no
questions asked). As they are some way away (Mainz), and the Kett is
difficult to transport, and fitting a new seat frame looks easy I ask
them to send the replacement to my home address.
Replaced seat frame without problem in 1/2 hour (the wire to rear
light is zip-tied to the frame, so these need to be snipped, and then
the wire re-fitted to the new seat frame.)
March 2010: Fit Sun Tour ratchet friction lever (front)
When cleaning the gear cable for the front derailleur I made the
mistake of removing it from the Grip-Shift. No amount of
experimenting, or Googling could fix it so from my junk both fit and
old (1980s ?) fit a Sun Tour ratchet friction bar-end lever. Works
February 2010: Fit BB-7 disk brakes
I bought and fitted BB-7 calipers as drop-in replacements. They work
much better than the original BB-5s (see below).
February 2010: Reflections on Snow and Ice
The Kett has been very nice during the last 5/6 weeks of snow, ice and
slush here in Darmstadt. It is great not worrying about falling off on
the ice (a neighbouring cyclist fell on ice and broke a bone) but you
still need to get the tyres through the snow, and with a trike that
means 3 tracks instead of 1 with a 2 wheeled bike. Luckily the main
cycle paths here are usually cleared quite well, and what was left
never quite stopped me !! However I did slightly modify my commuting
route to keep on some main cycle paths instead of quieter or shorter
January 2010: Those disk brakes ...
Hase fit the Avid BB5 disc brakes which worked fine when I got them,
but the pads wore out quickly and they are hard to adjust. This
forum thread contains a discussion on the topic, the consensus seems to
be to upgrade to the BB7s (currently Euro 50 retail).
If you are buying a Kett, I suggest paying the shop for an upgrade:
the mounts points and levers are compatible so the shop should upgrade
for only the price difference of the calipers (currently Eur
20-30) and it is only a 5 minute job for them !
(I just noticed on the Hase website that all the current Ketts use
either BB7 or Magura brakes.)
October 2008: Fitting Garmin Edge 305 GPS
Note unit mounted on cut-off handlerbar extension and cadence sensor
mounted on the steering rod: both fitted using the standard Garmin
Although when you steer the sensor moves away from the magnet it
works fine except going round hairpin bends. I guess you could use any
magnet, and you could find a stonger one to work better, but the original is
good enough for me.
(The cadence sensor also includes a megnetic wheel sensor which of
course does not work: but I noticed it can easily be unscrewed from
the cadence sensor mount exposing the wire that I guess could then be
extended and the wheel sensor DIY-mounted on the front fork.)
Fitting computer: moved over from old Kett
(Cateye Mity: to come: photos of sensor mount and computer mount)
Or see computer mount
and sensor mount
(both in German, but photos are enough to get the idea !!)
As I rode the trike home from the shop in Mainz the main thing I
noticed was how uncomfortable the seat was, after some time. I solved
this partly just by riding more (did the seat fit for me, or did I fit
to the seat !!) but also I did what I had on my old Kett. I re-routed
the seat elastics to go under the main tube (taking care not to
trap any cables). This avoids sitting on both the plastic clips that
hold the elastic onto the seat fabric and also the elastic itself as
it crisscrosses between the two sides. It is great now !!
May 2008: Buying it
Still riding the old Kett every day to work since March 2003, but now I
fancy a new one (disc brakes would be a big plus: the hacked V-brakes
on the old one are OK but...).
Spot an ex-test trike discounted and available 'locally' at Die Radgeber
in Mainz: disc brakes, 27 gear, sober grey.
The old one will be passed down the family line and/or I will get a
hitch to allow pickup/drop off of kids.
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