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24" Cruiser Gear ratio ????

#26 2010-04-11 5:14am

gtbmx_noracup
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Re: 24" Cruiser Gear ratio ????

I had a 36/17 and tried it out on a path. I felt like I was spinning way too much to get up to speed. So I changed it to 41/17 and it's much better.

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#27 2010-04-11 5:26am

BMX4ME
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Re: 24" Cruiser Gear ratio ????

acuzerfdw wrote:

I'm running 43/16 with 180 cranks on my 24" GT and it feels perfect for me.

running a similar gearing on my SX cruiser: 42/ 16 with 180 cranks. But that's my street cruiser, for that purpose it's perfect for me


What goes around, comes around.

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#28 2010-04-11 5:29am

plymouthfan
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Re: 24" Cruiser Gear ratio ????

40/16 is working great for me... I race taxi cabs and busses, lol

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#29 2010-04-11 5:38am

BMX4ME
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Re: 24" Cruiser Gear ratio ????

Like some mentioned before, the small gearings feel like spinning crazy without getting more speed. For cruising in the city, and not a track the 16 T freewheel just suits IMHO.

But for hills it kicks butt...lol, nevertheless went up there without walking. It's only the top of former bunker for anti-aircraft guns, but still a few serpentines to get up there.

http://img3.werkenntwen.de/photo10/a510e3055ba82357b989235cea13684d/6/9/69fas05fvjj1wajgnfmq0xyjamt.jpg

SX 24 UL and my buddies Hutch cruiser


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#30 2010-11-08 3:59pm

gtbmx_noracup
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Re: 24" Cruiser Gear ratio ????

Hi guys... I know this is an old thread but I have another 24" cruiser with a 14t cartridge type sprocket and the bike came with a 44t snowflake. I thought that was way too big without even trying it, so I put on a 40t snowflake and tried it out. It really felt like i had to push this thing and going up a slight incline was real tough. I'm going to try a 36/14 set up at some point. What do you guys think?

"D"

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#31 2010-11-08 6:15pm

pwolfe59
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Re: 24" Cruiser Gear ratio ????

36x16


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#32 2010-11-08 6:30pm

D.F.T.R
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Re: 24" Cruiser Gear ratio ????

44/18 AND IT FLIES!!


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#33 2010-11-08 9:14pm

Austin Oldskool
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Re: 24" Cruiser Gear ratio ????

gtbmx_noracup wrote:

I'm going to try a 36/14 set up at some point. What do you guys think?

I run 42 x 17, which is 59.3 gera inches. Sometimes I wish I had a little more top end, but I like it for quick starts and climbing. 36 x 14 is 61.7 G.I.s, which should feel pretty good.

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#34 2010-11-08 9:16pm

bonzer1969
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Re: 24" Cruiser Gear ratio ????

I have been looking for this kind of info. Thanks.


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#35 2010-11-08 10:07pm

LBPKrider
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From: Huntington Beach, CA
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Re: 24" Cruiser Gear ratio ????

I run 42/17 feels good just a little hard to get it rollin...I think the perfect ratio would be 40/17 or 41/17


I like my bike parts like my women slightly used....
Looking for yellow OM flyer tires, Nos silver pitbull 2 rear brake and lever

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#36 2010-11-08 10:41pm

surfer dude
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Re: 24" Cruiser Gear ratio ????

43/16 on this little beach cruiser.

http://bmxmuseum.com/image/bmx_bikes_026_copy0_lg.jpg

I usually keep up or even pass the lance armstrong types going up and down PCH.
Id like to get some disc brakes front and rear for it.
The rear brakes always seem to fade at the wrong time.
smile


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#37 2010-11-09 3:03am

gtbmx_noracup
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Re: 24" Cruiser Gear ratio ????

I want to utilize the 14t sprocket since it's an old style cartridge type hub and I have no idea where to get sprockets. I'm not even sure if i'm calling it the right name. The sprockets that clip on to the hub and you can change the size sprocket if you want.

I would rather have a nice 17t freewheel but I would have to change the hub. smile

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#38 2010-11-09 3:07am

gtbmx_noracup
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Re: 24" Cruiser Gear ratio ????

Austin Oldskool wrote:

gtbmx_noracup wrote:

I'm going to try a 36/14 set up at some point. What do you guys think?

I run 42 x 17, which is 59.3 gera inches. Sometimes I wish I had a little more top end, but I like it for quick starts and climbing. 36 x 14 is 61.7 G.I.s, which should feel pretty good.

Exactly... I need the climbing power for those slight inclines that are all over my area. So i'll try out the 36/14 set up... I think it will work out well for just cruising around.

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#39 2010-11-09 3:15am

phoenix land
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Re: 24" Cruiser Gear ratio ????

42/18 with 175mm


cool

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#40 2010-11-09 3:39am

macr0w
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Re: 24" Cruiser Gear ratio ????

surfer dude wrote:

43/16 on this little beach cruiser.

http://bmxmuseum.com/image/bmx_bikes_026_copy0_lg.jpg

I usually keep up or even pass the lance armstrong types going up and down PCH.
Id like to get some disc brakes front and rear for it.
The rear brakes always seem to fade at the wrong time.
smile

You might want to put some air in the front tire. lol


"My goal in life is to go into an office and take a brick in an office and put it next to a napkin in an office."

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#41 2010-11-09 8:47am

surfer dude
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Re: 24" Cruiser Gear ratio ????

yeah its had a slow leak for about 3 years now.
its still good
big_smile


JUST LET ME RIDE!!!!

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#42 2011-03-10 9:50pm

H5D
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Re: 24" Cruiser Gear ratio ????

42-16

6ft 200lbs.....it cruises good.


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#43 2011-03-10 11:44pm

BossHogg80
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Re: 24" Cruiser Gear ratio ????

40-15 w/181's big_smile

Last edited by BossHogg80 (2011-03-10 11:45pm)


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#44 2011-03-11 2:54am

Advan
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Re: 24" Cruiser Gear ratio ????

Good info.


Wanted- White Industries Freewheel 19T and 20T, and Big Gulp bars- because I think they look goofy enough to cruise with!

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#45 2011-03-11 8:56am

Coco
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Re: 24" Cruiser Gear ratio ????

pwolfe59 wrote:

I'm runnin 43-17 on my 24" w/ true 24" tire = 53.64
33-12 on my 20" w/19.5" tire = 53.62
28-14 on my 26" w/ 26.5" tire = 53.0

All these I race on. I found that once I started getting used to the spin my legs actually recovered faster in between moto's. At first you get really winded but after about 2 weeks of track time you start to get the feel of the spin. You also get up to speed faster out of corners.
  I can't remember who it was but a member here told me to train doing downhill sprints on a lower gear. It really works. And at my age ,50, I have to get a gate and TRY to get out of traffic ASAP.

I was just trying to finger out what ratio I need on that 26" cruiser I just bought. I was thinking 16-30. is there any on-line ratio charts for 1 speed 26"? Cranks are 175mm.

Last edited by Coco (2011-03-11 8:57am)

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#46 2011-03-11 10:18am

pwolfe59
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Re: 24" Cruiser Gear ratio ????

20" race bikes come with 44-16=53.6 gearing and have for a long time. This is the standard gearing or ratio that most bikes come with stock, or try to get as close to as possible. Even the micro gearing is aimed at this same ratio.
Crank size makes no difference in the gearing. It does make a difference in spin and torque. Longer arms = less spin and more torque do to more leverage.
  Shorter arms come around quicker and will feel like your spinning more but actually the rotation is the same it's just shorter strokes.
   I noticed on 185's I get a huge snap out of the gate but my second peddle suffers due to the longer crank/ slower rotation. 180's my gate is still good tongue but my second peddle is a lot quicker in turn around. 175's are just to short for me.

To find the exact ratio you want you use this formula. Get a calculator 'cause I know only one guy who can do this in his head.
You take the tooth count from your front sprocket divide it by your back cog or freewheel teeth, then times it by your exact inflated rear wheel size. Don't go by what it says on the sidewall of your tire because it is not correct.99% of 20x1.75 tires are actually 19.5" tall.

So 44 x 16 / 19.5 = 53.625   45 x 16 / 19.5 = 54.8437.
It all depends on what gearing you like to ride. Do the math.

I am running 26x2.10's on my 26" and they are 26.5" tall.
1/4 inch difference of tire height will make your gearing go up .70. You will feel the difference.


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#47 2011-03-11 10:23am

felkman
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Re: 24" Cruiser Gear ratio ????

I am running 43/16 with 180 cranks on my 82 Mongoose two four!

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#48 2012-04-16 11:31am

BmxAZtekL2
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Re: 24" Cruiser Gear ratio ????

Good info here ..... i have 38/17 on my cruiser  & feel im not going no where , thx to all !!

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#49 2012-04-16 11:41am

Legendofjd3
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Re: 24" Cruiser Gear ratio ????

35-12 on one cruiser and 36-13 on the other. Both are very fast "cruising" the streets.

Last edited by Legendofjd3 (2013-09-09 5:29pm)


Titanium

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#50 2012-08-28 2:54pm

CruiserMike
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From: San Jose, CA
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Re: 24" Cruiser Gear ratio ????

I used to Dirt Jump 20" BMX back in the day and had a really high gear ratio, I dont remember what the front Chainring was, but I had a flip flop hub with 13t rear sprocket.  It was a tough one to pedal, uphill = impossible. But very fast once it got going. VERY FAST.

I just recently bought a 24" GT cruiser used.  It came with 39/17 gearing. which after my first ride I could tell was way to easy, spinning like mad....So I bought a new 41T chainring, slapped it on, and its still way to easy...I feel like Im working my butt off it get it to crawl.  I am about to put a 15T freewheel on the back.  So I will be running a 41/15 on a 24", which according to the posts on here is way to hard, I think its like a 65.6 ratio ?

I would like to start racing, but dont want to get left behind at the start gate. I supose its all a matter of personal preference on how hard I want the pedals to be.  What do you guys think..... 41/15 on a 24" with 24x1.75 tires......

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