Singlespeed & Fixed Gear - I want build beach cruiser design, fixed geometry frame.

Asi I wrote in the title, I plan to produce a beach cuiser frame, with design simillar to beach cruiser bicycle (designed as Dream Bikes iq150 Classique or other classic cruisers) with geometry ready for fixed-gear. I think to build a frame smaller than race frame, but bigger than cruiser frame, for 28" wheels. Please help me in choosing correct geometry of the frame.

hevimental

Interesting

if only it were slightly quicker for me to upload some sketches. i can't quite make myself go through all the steps at the present moment this afternoon, perhaps later.

What is fixed geometry?

haha

the project sounds like: tight wheel clearances, curved top tube and down tube, and super relaxed head tube and seat tube angles. sounds sorta like a Country Road Bob:

http://www.63xc.com/chrisa/zmcrbob.jpg

^agreed.

awesome frame, what is that?

i love stretch cruisers
http://images.myphotoalbum.com/s/sl/slo/slow/slown/slownlow/albums/album21/coaster_stavern2.sized.jpg

awesome frame, what is that?

the one i posted is a Van Dessel Country Road Bob:
http://www.63xc.com/chrisa/crbob.htm

62 head angle. 90 seat tube. Straight gauge pvc.

Titanium

http://i78.photobucket.com/albums/j103/jetsanchEz/blacksheep.jpg

http://i78.photobucket.com/albums/j103/jetsanchEz/middleside.jpg

http://i78.photobucket.com/albums/j103/jetsanchEz/jones1.jpg

http://i78.photobucket.com/albums/j103/jetsanchEz/desalvo.jpg

Go 29er!

What is fixed geometry?

haha

^^

Do you currently build frames? Are you a company having someone else manufacture them for you?

Retrotec has cool designs...
http://www.ingliscycles.com/i/r_c_x_yel/r_c_x_yel3.jpg

omg these bikes are beautiful

http://i78.photobucket.com/albums/j103/jetsanchEz/jones1.jpg


This is such a weird, gross mess... but somehow it's pretty damn sexy too.

Do you currently build frames? Are you a company having someone else manufacture them for you?

Retrotec has cool designs...
http://www.ingliscycles.com/i/r_c_x_yel/r_c_x_yel3.jpg

This is absolutely awesome.

I still want to know what "fixed geometry" is.

Does you just mean horizontal dropouts?

tight length and steep angles

tight length and steep angles

Except there's no such thing as "fixed geometry." There are all kinds of fixed gear bikes in all kinds of geometries. My nephew's tricycle bears no resemblance to my track bike. "Fixed" is a type of drivetrain, full stop. There's no such thing as a "freewheel geometry," is there?

If the OP means track geometry, then OK. I'm honestly not sure what he/she is after.

http://i78.photobucket.com/albums/j103/jetsanchEz/desalvo.jpg

anyone know what kind of handlebar that is? seen it around on several high-end custom builds, not sure if it's available for the masses.

I believe thats the h-bar from jones bikes
http://www.jonesbikes.com/h-bar.html

whoa, they weigh over a pound, and they cost $550

I ride this fixed.

http://i461.photobucket.com/albums/qq334/Masifan/DSC01102.jpg

anyone know what kind of handlebar that is? seen it around on several high-end custom builds, not sure if it's available for the masses.

Here is the mass market version designed by Jones and licenced By TiTec.


http://www.universalcycles.com/shopping/product_details.php?id=16233&category=371

Except there's no such thing as "fixed geometry." There are all kinds of fixed gear bikes in all kinds of geometries. My nephew's tricycle bears no resemblance to my track bike. "Fixed" is a type of drivetrain, full stop. There's no such thing as a "freewheel geometry," is there?

If the OP means track geometry, then OK. I'm honestly not sure what he/she is after.


Word.

fixed geometry

http://academic.evergreen.edu/curricular/adaptation/pics/PennyFarthing.jpg

None of the bikes folks are putting up are cruisers... they have road / cross geometry with a fairly forward riding position.

A cruiser is going to have slack angles, an upright seating position, and some fat tyres... the drive train is a separate affair.

None of the bikes folks are putting up are cruisers... they have road / cross geometry with a fairly forward riding position.

A cruiser is going to have slack angles, an upright seating position, and some fat tyres... the drive train is a separate affair.

word. haha

Some of the slackest angle ever... but this is a roadster.

http://www.ravingbikefiend.com/bikepics/Nevilleside.jpg

None of the bikes folks are putting up are cruisers... they have road / cross geometry with a fairly forward riding position.

A cruiser is going to have slack angles, an upright seating position, and some fat tyres... the drive train is a separate affair.


....design simillar to beach cruiser bicycle... with geometry ready for fixed-gear.

ummm.

fixed geometry

http://academic.evergreen.edu/curricular/adaptation/pics/PennyFarthing.jpg

actually, direct drive...

actually, direct drive...

touche. :p

Oh man, I've had a crush on the Jones truss frame for a while now. Any of you interested in dirt should read his blog:

http://jonesbikes.com/blog/

gaaaaagggaaaaa

Asi I wrote in the title, I plan to produce a beach cuiser frame, with design simillar to beach cruiser bicycle (designed as Dream Bikes iq150 Classique or other classic cruisers) with geometry ready for fixed-gear. I think to build a frame smaller than race frame, but bigger than cruiser frame, for 28" wheels. Please help me in choosing correct geometry of the frame.

hevimental

Depending on the size of the frame and how aggressive you want but I would recommend a 71 head angle and a 72 seat angle. That is pretty slack, comfortable and easy to ride after drinking 5 pints and trying to turn your head to look at all the girls on the boardwalk.

Typical angles are roughly 73-74.5 Seat & 73-74 head with a high bottom bracket and very short chainstay length. So something in between can work as well.

Here an example of both worlds blended together:
http://farm4.static.flickr.com/3168/2589040534_cd328e84b8.jpg

http://alexandchristine.smugmug.com/photos/252365809_MGx4d-L.jpg

http://alexandchristine.smugmug.com/photos/252366176_4oF9z-L.jpg

http://farm4.static.flickr.com/3180/2899117087_ef6768d548_o.jpg

Hello,

Thanks a lot for Your posts!!
It's always very important to my to see other bikes and other bikers ideas.

I'm a BMX rider since 8 Years, I had a BMX-shop, 3 Years ago I started selling beach cruisers, produced in China, asembled in Poland. Now I start to produce beach cruiser frames in Poland.
I like beach cruisers, fixed gear and BMX because of the simplicity of these bikes.
I will produce 3 types of beach cruiser male frames (+one female) so I plan to produce:

1. strong beach cruiser frame with MTB Freeride frame geometry
2. medium beach cruiser frame with MTB X/C frame geometry
3. light beach cruiser frame with racing bike geometry.

because of my local friends and own experience it's easy to my to design MTB frames, byt I had never my own racing or fixed bike, that's why I ask You for help.

My bikes (www.DreamBikes.pl (http://www.DreamBikes.pl)) are simple, strong and with some vintage accents. So from bikes shown here, the bikes from Mr MacGee are in simillar to Dream Bikes style.

So I want to build bike looking exactly as vintage beach cruisers, but with racing/fixed-gear geometry.

Daniel

I'm building a 1989 Schwinn Cruiser with 3-piece cranks (Poverty un-sealed), Haro Cruiser bars, and 700c Deep-V wheels with a coaster brake. I'll throw some road tires on, but will switch to CX tires later.

My brother and about 20 or so other crazy Santa Cruz, Ca. (I'm from Santa Cruz) MTB'ers do a rain downhill run on beach cruisers every winter. I'm kinda building it for that and errand running, I just don't want to ruin it now! My track bike is just too nice (add clipless pedals) to be running around like that, plus my flatland bike is pretty uncomfortable + expensive to be locking it up anywhere.

I'll post pics of my build when I'm done.

So I want to build bike looking exactly as vintage beach cruisers, but with racing/fixed-gear geometry.

Good luck with that.

Except there's no such thing as "fixed geometry." There are all kinds of fixed gear bikes in all kinds of geometries. My nephew's tricycle bears no resemblance to my track bike. "Fixed" is a type of drivetrain, full stop. There's no such thing as a "freewheel geometry," is there?

If the OP means track geometry, then OK. I'm honestly not sure what he/she is after.

yeah, i sort of assumed the OP meant track geo, forgot to include that.

I'm not here to talk about the definitions. I know that there is no fixed geometry, when I use it I mean track bike geometry. So I want to build beach cruiser design bike looking like this one:

http://dreambikes.pl/images/dreamiq150.jpg

I'm pretty sure that there are some track/racing bikes frames better for fixed gear than others because of geometry.

As i wrote, I don't have experience on fixed gear bicycles, so please help me in choosing geometry of my frame.

Please just try to write for me all parameteres as on this drowing:
http://www.vintage-trek.com/Trekpromoa_files/image002.gif
A:
B:
C:
D:
E:
F:
G:
H:

I love bikes and I want to build a great product, so please help me.

I would try the framebuilding forum, or just copy **** off a manufacturer's website.

Are you planning on making one size only?

just a bump for the beauty of the masi soulville, mentioned on the previous page. one day i'll have a garage that'll allow me to have more than 1-2 bikes :)
http://blog.wired.com/gadgets/%2708+Samples+044%201.jpg

I built this from parts I had in the garage. Only thing I bought was the bottom bracket conversion from american to euro and the Wald basket.

I'm not here to talk about the definitions. I know that there is no fixed geometry, when I use it I mean track bike geometry. So I want to build beach cruiser design bike looking like this one:
I'm pretty sure that there are some track/racing bikes frames better for fixed gear than others because of geometry.

Beach cruiser geometry is designed for easy handling on wide tires and a comfortable, upright position, and for riding without too much effort. Track bikes are designed to handle very tightly to race in packs, to have a hunched over, forward, aerodynamic position, and to convert as much human effort as possible into momentum. Your two design philosophies are from nearly opposite ends of the functionality spectrum for a bicycle, so your design is impossible.
If you want to design a performance track bike, there's no reason to design it with beach cruiser style because track racers won't care. If you want to design a fun, road-going fixed-gear bike with cool cruiser style, just use similar geometry to a road frame (i.e 73-74 degree head tube and seat tube angles) with a mid-to-long wheelbase and use curved tubes like some of the bikes shown here, notably the Van Dessel Country Road Bob from page one.
A bike with track geometry and beach cruiser components (cruiser handlebars, sprung saddle) would be terrifying to ride at speed because the rider's center of gravity would be much higher and the bike would feel like it was about to ride out from under you.



As i wrote, I don't have experience on fixed gear bicycles, so please help me in choosing geometry of my frame.
Please just try to write for me all parameteres as on this drowing:
I love bikes and I want to build a great product, so please help me.

The only people here who are experienced enough to design your bike for you will recognize that this is a bad idea. Besides, most of the "style" of a cruiser bike comes from the paint and the accessories and the thick curved tubing so concentrate on that rather than the geometry.

How about: WHO CARES?

Hevimetal, there are a lot of in-between bikes like what team green posted, or you can even look at a Swobo Folsom and that sweet Masi. I just got my 700c wheels in (with coaster brake, of course) that I'm going to throw some road tires I had laying around and slap those silly on my Schwinn. All my bikes are way too nice to be locking up outside of store, so I'm building my "errand" bike, but it's also turning out to be very nice.

As far as your project goes - I say GO FOR IT. I like strange hybrids...

Okay, here's my nasty, anti-design philosophy bike.

87685

beach cruisers are pretty effing cool.