This
site is to chronicle my foray into the land of recumbents, both two wheelers and
trikes. Hopefully my experiences will serve to educate, enthuse, possibly
inspire and/or warn other would-be builders. While initially the intent
was to use the domain to host the selling of mine (and others) home built bents,
now it will just serve as predominantly a source of information to help others
locate information and ideas on bents, where to get them and possibly how to build
them. This will be sparse on the eye candy, and hopefully heavy on the info.
There are lots of links and pages here and some technical info and building
advice under Tips/Tools/Help. Links
will be on the left side on all pages. Main links are at the top, individual
bents in the middle with newest projects at the top, older towards the bottom,
and miscellaneous at the very bottom. All the bents' pictures and specs
are together on the "Chart" page for easy comparison. Building
and design tips are in the Tips/Tools/Help link so read there if you're wondering
about something. I spend more and more time away from the computer and much
of it is building and riding so if you ask a question, don't be surprised if the
answer is late or doesn't happen at all. Just check through the pages and
you'll find what you're looking for. Peace out :)
Updates 14
May 2008 I've had a good run in the
garage lately and have made a bunch of updates on the site as well. I got
a tailbox and some rear wheel discs made for the Raptor 74. Ground off some
cassette teeth in a cheap immitation of the SRAM Red and am working on a set of
front wheel discs for it as well. All this in preparation for a couple upcoming
races. Updated the Chart page, made new bars and stem for the Raptor 44,
plus mounted a rack on it. Updated some shortened cranks and some more oval
chainrings as well as updated the Speed's page. Made a new seat for the
Nitro clone but still need to do a couple small tweaks on it and update its page.
Also working on some info for wheel discs and the page for building the
Raptor's tailbox. | 8 Apr 2008 Had
a bit of a hiatus . . .again, but I was still tinkering. Just not at a rate
I normally do and not doing much on the updates. That has changed though!
Possibly due to warmer weather slowly but surely trying to arrive. I
finished the new 20/20s and updated the page but
haven't got it on the chart page yet. The Nitro seat mods went fine, but
there are some ergonomic tweaks that need to be done yet like a slight angle mod
and tweaking the bar position as well. I'm also finishing up a triple set
of 10% ovals with 145mm cranks for the Raptor 44, building up a new 9 speed rear
wheel for it and then will convert the bars to praying hamster and add a rack
and some under-seat storage. Might need to make some bidon extensions for
it as well. After that, I have a long list of bents that I need to and want
to build and hopefully will be able to get some good progress on them. I
have also been compiling a photo essay of a complete build but I'm not sure how
I should format it yet. I was thinking a start to finish explanation with
individual links on the side for certain parts to quickly jump to them. Still
considering the options . . . | 19 Nov 2007 Finally
finished up a long standing 20/20Hi trike project
and added it to the chart page and updated a couple other details. Also
doing a seat upgrade on the Nitro clone and started another 20/20 trike but with
1" tube instead of 1¼". Page updates for those later. | 23
Oct 2007 Finished the Raptor
44 and updated the page. Added the '44, '44i and the Uniframe to the
Chart page and updated a couple links.
Finishing up a seat mod to the Nitro and another 20/20 trike. | 2
Oct 2007 Done lots of riding, and not
much building unfortunately. The chainrings were completed and installed
on the Speed and after about 500km, I'm going to adjust them back closer to default
because they don't feel like they're "working". I finally got
the Uniframe finished and
my daughter is now happily buzzing around on it. I also added the measurements
to Larry's small trike.
I broke the right fork leg on the Raptor going for a track record at Windel
Park during testing, but it has since been repaired and back on the road. Lastly,
the Raptor 44 is about one day away from finally going in for powder coating,
then it's assembly time. | 24 Aug 2007 The
oval rings for the Speed are almost completed and I should have them done, mounted
and test driven tomorrow. I need the Speed for a ride on Monday, and possibly
one on Sunday as well. The '44 is pretty much complete and assembled
ready for a good test drive. Tomorrow the seat will go on the '44i (hopefully),
the handlebars will be made, and the stem will be trimmed. Might even be
able to fully mock it up if all goes well. | 19 Aug
2007 A few other commitments limited
the amount of building time I had, but I managed to get the 44i
fully welded and assembled into a rolling chassis as well as get the brake mounted
on it. I had a frame failure on
the '74 due to some hard riding, rough roads and a little too much grinding (I
think) but it was easy and quick to repair, and it's back on the road. I
have some parts coming in to move the '44 along and will adjust the boom position
a little plus add the front derailleur post. I also want to shorten the
steerer tube on the '44i and make an adapter for the head tube. I've also
got some oval rings on the go for the Speed and all 3 Raptors, plus 3 more seat
frames - possibly an Al seat frame too. | 15 Aug
2007 Got a rolling chassis far enough
with the Raptor 44 to give it a good test drive, and have most of the frame parts
welded up for the Raptor 44i Al
version. Started laying out some oversized Al chainrings for the 3 Raptors
and the Speed. | 11 Aug 2007 Updated
the Chart page. Spent the last couple
days doing a few small tweaks to the Raptor 74's idler,
and making some progress on the '44.
Also did a final 3D drawing of the Raptor '44i, built the forks with my
friend and did some preliminary part preparation. The '44i page will be
up tomorrow or the day after. | 8 Aug 2007 Been
a long time since I did any official updates to the site. I've spent most
of the time on smaller projects and working on a trike that I still need to add
a page for. I also did a lot of riding and rode in a number of charity rides.
It was a nice change from having my head stuck in the garage all the time. However,
in the last few weeks, I have started to ramp things up again with my "new"
series of bents called the Raptor. I built the Raptor
74 in a couple weeks and it is a smooth, comfortable and fast bent! I
look forward to laying down a bunch of new PBs with it plus I have been racing
with the local bike club and would like to see if I could set a 20 minute range
time for the club's 15km TT. Later on, likely next year, I'd like to see
if I could campaign it down in the northern U.S. at some of their bent races as
well. After finishing the '74, I started on the Raptor
44, a dual 451 version of the Raptor with a few minor mods. I also built
a new fork jig to help standardize
and speed up the process of building and modifying forks, and I added a few more
forums, groups and personal pages to the Links section. I also made a few
chain idlers with sealed bearings I had kicking around. I'll post their
pictures later. | 27 Mar 2007 Ice
races have come and gone both in Brantford and in Toronto. The Zephyr
worked great and while I added more screws for extra traction, I wasn't agressive
enough with the pivot angle to fully utilize them, so I was still sliding out
and scrubbing speed in the corners. Oh, well, there's always next year.
The FReD worked great, all the way around, and both trikes are now completely
finished and converted back to "normal" road trikes, but I'm keeping
the ice racing conversion kits for both of them. I
switched out the 60/40 chainrings on the Speed and installed a 70/44
oval on it instead. As the weather is slowly getting nicer, I'll see
how the new double works on my commute but I'm ready to add a middle ring somewhere
in the 50T range if need be for a better mid range. I'm looking forward
to trying out that oval on the hills too. After nearly a year of hanging
on the wall in the garage, I pulled the Python
2 down, cleaner her up, pumped up the tires and got it back out on the road.
It rides great, and thankfully I still remember how to ride it. I
also started to build two more trikes based on the 20/20 heavy. One is a
slightly modified version with a few minor tweaks, and the other is going to be
a 1" square tube version mainly so I can use up some 1" box that has
been in my rack for a while. When I get a little more progress on them,
I'll post their own pages. After that I have a couple mini-Baron clones
to build plus a back to back tandem trike, hopefully by mid-May. Oh yeah,
and I guess I still need to finish my daughter's trike too . . . |
| 13 Feb 2007 I got FReD
and the Zephyr built in time
for the ice races, got blade adapters made for my brother's trike
and fabricated new blade sockets for the trike rack on the back of my van (pictures
to follow). Both trikes were very successful and handled better than I could
have hoped. I look forward to the weather clearing up enough to get wheels
on them both and see how they take to the road too. Race results are here,
and some race pictures are here. Next
on the block are a few more quick tweaks to get the trikes ready for the Toronto
ice bike races on the 24th of Feb. - check the screws on the
Sabre and the FReD because they both had flats in Brantford
- add
some more screws to the Zephyr's rear tire as I was doing power slides in the
corners
- modify the blades and their placement on the adapters for
the 20/20 and then test them
- shorten a set of cranks to 140mm and
swap out the 62/40 ovals on the FReD
- the FReD is out for powder,
so it'll have to be re-assembled too
- do some final paint touch-ups
on the ice racing parts
After all that, start laying down some
steel for some new trikes. I'd like to have at least 4 more built before
May. | | 24 Jan 2007 The
TST went in for powder coating, and in the mean time I've been working on a FWD
RWS delta trike/ice racer. Added the info on the 62T
and 40T oval chainrings I started and two more sets of cranks I shortened
to 140mm. Added the last set of rollers
I made before Christmas holidays. | | 15 Jan 2007 Did
some more building and reworking of the web pages, just not much updating of the
main one :) I added a few more links that I stumbled across, especially
those regarding traffic bylaws and bikes. Added a few more jigs
to the jig page, started a wheel page
and changed the Tips/Tools/Help page format so make it easier to navigate and
easier to update. Still have a couple small link bugs to sort out though.
The 70T chainring is done and I started
some 62T and 40T oval chainrings, but they had to go on hold while I quickly try
to build a tilting tadpole trike for
the ice races
on Feb 4th. I also made two new sets of rollers
and modified a wind trainer so the indoor training could go along full speed,
but don't have the final roller pictures up yet. Tool page still isn't online
yet but I'll get on that as time permits. | | 11
Dec 2006 Been fairly busy and added
a bunch more information and projects. Finally added the Python
crate that was made in May '06. Added the final mods on the Mk
3 before selling it. Finished up the ice racing
page. Added some initial info on some big chainrings
I'm trying to fabricate. Added another
set of rollers and a wind trainer mod, and added some more builders, commercial
trikes and clubs to the links page. Started work on the tools page and the
jigs page, but still not done them. Currently making
a beefier boom for the 20/20 and will try another dual roller with some commercial
rollers for use over the holidays. | | 24 Oct 2006 The
20/20 heavy is complete and has a few
KM and a few TT's under it's belt now. Did more re-vamping of the Links
page so most links open up their own page, plus did some re-organizing. Added
some more seat cover details and a few more bents
to the bottom of the Gallery page. The Projects
link is now functioning as is the Windmill
info. On to a few tweaks/updates to the Mk 3, then to finish up the Uniframe
as it has been sitting too long, much to the dismay of my daughter. I
still want to put the delta python with the delta info, and update some of the
prototype links. | | 30 Sept 2006 Progress
is coming along nicely and the el
Tigre is completed with a few final mods. The 20/20
heavy is completed and ready for powder coating on Monday. The Links
page has had some minor organizational changes and a DIY
headrest has been added. | | 23 Sept 2006 I
thought I'd updated this earlier as I've been pretty busy building. Apparently
I did not . . . :) The Nitro is finished
and the page is completed.
Built a trike for my friend's wife and daughter, and it's done
and rolling. Started on the trike
(finally) for my daughter and got a fair bit done, but got side tracked on another
trike so it's been dormant for a little while. Started on a heavy
duty version of my twin rail design that is 60% stronger and about 5% lighter
than my previous trikes, plus it has a folding boom to make it easier to transport/ship.
Added a quick set of plans
to the Tips/Tools/Help section. Finished up just about all the tweaks
to my Catrike Speed except for the wheel discs. Finished the Bowden Baron
. . . finally, and the pictures will be uploaded tomorrow. It will officially
be renamed "el Tigre"
- you'll see why :) Finished the additions to the trike
rack section, the crank shortening
experiments and an AL
chainring adapter. Fixed most of the broken links and missing pages in the
individual trike links, and I want to re-organize my Links page - but that will
have to wait for a bit. I have another
trike to build a new seat for and do a few tweaks on, but I also need to get the
20/20H online for velodrome races in 2 weeks. | | 31
May 2006 All the Nitro clone progress
is now listed here. | |
28 May 2006 Been a busy few weeks.
Got to the track at Windel with both the Bowden Baron and the high racer.
Been repainiting and tweaking the PC2 to get it back on the road in original
trim instead of as the tilting delta. We're
quickly bilding up a Nitro clone for my friend Marcel as we're planning to ride
the 50km Ride 4 Heart in Toronto ON. We're making great progress on it and
it should be test-ride time tomorrow or Wednesday if all goes well. After
that, finish up the PC2, finish up the Baron, and start on a few tweaks and mods
for my Catrike Speed. | | 16 Apr 2006 Finished
a few tweaks and final mods on the BHP
and took it for a 15km ride this afternoon with some friends and family. Did
a few more hours of work on the high
racer and installed the shifters and brakes, and let my brother take it for
a break-in ride on our little 15km bike ride. Did
some unofficial testing with the 130mm cranks I made. |
| 11 Apr 2006 Got
the final pictures and stats for Marcel's final-mod python. |
| 9 Apr 2006 Finished
up the 24/16 trike's page with the final pictures. Got
another 14 hours of work done on the high
racer and took it for it's first test ride. Very happy with it and definitely
a different feel than the python. The high racer rolled very easily and
I had to coast a long ways and drag my one foot to get it slowed down as I don't
have brakes on it yet. That's the next priority - controls :) |
| 5 Apr 2006 Been busy
with post-ice races activities like cleaning all the road salt off the trikes,
and converting them back to standard road tires. Transferring all the files
from bikes.jkcc.com to this old domain of mine so I'm not maintaing two sites
for virtually the same thing. Finished
up the 24/16 and final pictures will be up shortly. Modified
the front fender on the BHP so that
there is less "sail" effect with strong winds from the sides. It's
working quite nicely now. I also plan to take the delta rear end off the
PC2, modify it slightly, and install it on the BHP. Pictures when that happens. Finally
got back on the high racer project and have the seat on and mounted. Ready
to run the chainline and make the handle bars. Will build the bars in accordance
with the principles set out here. The
first race of the season kicks off on the 7th of May so I want to have as many
bents online as possible by then. Plan is also to finish up the Baron
clone and have it on the road too. | | 6 Feb
06 For the last two weeks I've been
working fairly feverishly at completing the ice racers and doing final testing
and tweaks on the handling and traction. Now that the ice races are completed,
I'll take a few days off from building to finally to some webpage updating again. The
24/16 performed excellently on the ice. I was very happy with it and it
was nearly as fast as the ice trike. Final dimensions and specs were recorded
on the trike and its page has been updated. Final pictures will be taken
when I remove the ice tires and install the roadies with the fenders. The
last mods were completed on Marcel's ice
python and it was successfully raced. A little bad luck prevented him
from doing as well as I think he should have done, but there's always the next
race. :) The python delta results and
latest pictures are here. Details
on the trike carrier for the van, and a how-to on ice racing preparation will
be uploaded hopefully tomorrow, along with a link to some of the ice race results
at Georgian
Bents. | | 19
Jan 06 Been working on the python
delta conversion for the last few days in the hopes that it will be ready for
the ice races as well. The conversion is coming along nicely, and if I can
get the parts I need, it should be roadworthy by the end of the weekend. We're
still waiting for some cold enough weather to test the ice trike and ice python
mods on the local outdoor rink. Also get to pick up the 24/16 trike from
the powder shop tomorrow and will try to get it assembled tomorrow night. Once
everything is set up and adjusted, I'll put the spike tires on it and see if I
can get some ice testing done on it too. | | 14
Jan 06 Built a skate rear end for
my friend's python so he can use it for ice racing on Feb
5th. Will see how the traction on the front and rear works out and get
ready for any mods. | | 13
Jan 06 Finished up work on the
24/16 trike and will take it in for powder coating in a couple days. I'm
also planning on throwing some ice-ready tires on it so it can be raced at the
local ice races on Feb
5th. | | 5
Jan 06 Modified the blade position
on the ice trike to make the steering more stable in the corners. Will see
how the trike handles and if more screws are needed in the rear tire for traction
on high speed cornering. |
First though, a little clarification on some
terms you might run into when reading about trikes and bents.
| Bent or
Recumbent | - generally
refers to a two wheeled bicycle that has a semi-reclined seating position. Aside
from the comfort benefits of this position of riding, it also helps put more power
to the pedals, lowers your center of gravity and reduces the wind resistance.
| | Delta
trike | - this term
refers to the trikes that have 1 front wheel and dual rear wheels. The trike
can have either front or rear driven wheels and be steered from either end. |
| Tadpole trike |
- this term refers to trikes that have 2 front wheels and
one rear. More often, the rear wheel is driven but can be steered from either
front or rear. | | SWB |
- means "short wheel base" and is applied
to both 2 and 3 wheel designs. In a 2 wheeler, it is identified by having
the pedals on a "boom" sticking out the front of the bike, above the
front wheel. | | CSWB | -
means "compact short wheel base" and is applied mainly to 2 wheel
designs. It is identified by having the pedals mounted either just in front
of, or just behind the steering head of the bike, usually up high near the top
of the bike frame. | | LWB |
- means "long wheel base" and is applied
to both 2 and 3 wheel designs. In a 2 wheeler, it is identified by having
the pedals mounted back behind the steering head of the bike, and usually mounted
lower in the frame. Also called "semi-recumbents" because
the rider has a more upright riding position. | |
USS | -
means "under seat steering" | |
OSS | -
means "over seat steering" | |
Gear inches |
- it is a method of numbering gear values for bicycles. The figure
is calculated by using the following formula: (#teeth
on front sprocket/#teeth on rear sprocket) x wheel dia For
reference, the lowest gear on a mountain bike might be in the 22 - 25 inches range,
and the highest gear on a racing road bike might be around 107 - 110 inches. The
gear inches indicate basically the "virtual" diameter of the rear wheel
in any particular gear combination. | |
X - seam | -
this is an important measurement for recumbents because your inseam is no longer
accurate info for determining bike size and pedal placement. The x -
seam can be determined by sitting on the floor with your butt against a wall
so that your belt is just touching the wall. Straighten your legs, point
your toes at the ceiling, and measure the distance from the wall to the soles
of your feet. That is your "x
- seam". | I'm
not going to get into to the pros and cons of each design type here as there are
lots of technically informed opinions of them all over the net.
|