Good Morning,

I’m looking to build my first SS. I want to end up with a "cruiser" SS that I can putt around on and I want a steel frame. I'm not looking to race or build a speed demon, I just want a SS in steel that I can throw in back of my car when I go on trips or for local rides that is a nice easy ride. I have been reading the SS/Fixie forum for about 1 month and I have decided on the following:

IRO Mark V frame – 56cm
IRO Wheelset – Probably the Red Deep V variety - 32 spoke

I have quite a few road bike parts that I’d like to use and I’m wondering if the will work.
* Cannondale EX Crank 170mm (It came off of a Cannondale R600 - Comp. to a 105 crank)
* Cloth Rim Tape and 700x23 Tires
* Sealed bearing pedals - Easy to mount toe clips on these
* Shimano 5500 BB - 68 – BC1.37 x 24 L<->R 109.5 (Off the Cannondale also)
* I have a CK 1-1/8” Threadless headset and spacers and star nut (No problem here)
* I have multiple stems, handle bars, seats and posts, and brakes from 700cc road bikes
* I have a few SRAM chains (PC89R – Shimano 9 speed) and others that I’d like to use if possible.

Here is my question – Where would I get a freewheel that will work with a 9 speed style chain? Most of the freewheels I see are BMX style and I "believe" those use a different size chain than a 9 speed chain. I'd like to use the Cannondale crank if possible.

Thank you in adance for the replies.
Ride Safe,
Ti-Carbo

your probably going to need a 3/32 freewheel cog. I have one on a cruiser style bike that I put together made by AC Racing. Its a BMX cog but it works on single speed hubs (such as your IROs). There are lots of options out there. I try and find a link. Happy building!

Here is the freewheel I mentioned.

https://harriscyclery.net/site/itemdetails.cfm?ID=1094

Thanks for the replies rlgosa. My son rides flatland and we had to trim his chain when we built his bike. I have the piece of chain left over and it fits perfect on the Cannondale chainring (It only has 20 miles on it). I went to the link you provided and that's the freewheel I want. I already have the BB tool - so it should be a no-brainer.

My Sons Odyssey wheelset came with multiple cogs so I might give fixed a go if they mount right up. I'm researching wheelsets in depth now. I have a road bike and wheels make a huge difference in overall ride quality so I'm searching - reading - saving links - etc... Phil Wood seems to make a sweet hub!


Thanks again rlgosa,
Ti-Carbo