new 700c conversion

cristin

New Member
4265_eb7ec51a440205003aef04ee992719a6


wahoo! I finished it. I used my old mavic/wheelsmith 700cx23 wheels, and they fit without much problem. I had to put in a slightly thick spacer between the forks and the adapters to make the wheel fit well, but it doesn't seem too extreme.

and the awesome 700c brake adapters made the brakes super easy:

4265_88a1461441547365c17a304c8fe78c3d


Now I just need to learn how to ride it!
 

Doug Burton

Zen MBB Master
Wow, I really like it!

Very elegant-looking; the red fork is a nice visual touch. Gobs of suspension travel!

Where'd you source the fork from?

Looking forward to a ride report, keep us posted!

Best,

Doug
 

John Tolhurst

Zen MBB Master
A lot of people dont' know this, but that there is one extremely capable solid fast unit. Much like one of my favourite cruzbikes that I had a child seat on the back of. Did the freeway ride here in Perth of 30km in under one hour - with a child IN the child seat. What a ball we had. There were some guys as old as me on road bikes, but they weren't going a whole lot different speed.
 

cristin

New Member
I sourced the shocks (used rock shox dukes,) rear deraileur, pedals, handlebar, stem, shifters, and brakes from a few bikes in the Bicycle Kitchen here in LA (I sometimes wrench there on mondays - ladies' night). The bottom bracket, cranks, chainrings, and wheels came from my old touring bike, I had the wheels built by wheelsmith years and years ago in Palo Alto - super durable, and I've gone thousands of miles on them with only having to true them once, so I wanted to make a conversion that kept those. The only things I had to purchase were a seat post clamp, some cable housings, and a new front deraileur (as I couldn't find any that fit the new wide "downtube" of the kit.)

Man, the first ride today was squirrelly. It really wants to turn when you don't want it to. Having read the boards a lot, it looks like I'm probably shifting my weight too much like I would on an upright bike. After an hour of tooling around in a parking lot, I'm getting more stable, but I will want to do that a few more times before I take it on a road with traffic.

I am very impressed with my physical comfort while riding. It has been years since my neck hasn't hurt badly after a ride of even 15 minutes. I'm guessing that after I get used to it, I may want to go with moustache handlebars to relax my forearms more, and I may want to change my cranks from my standard 175mm to something shorter to prevent any handlebar vs. knee issues.

First, though, I am going to get comfortable riding it before I make any major changes to geometry of handlebars or cranks.
 

defjack

Zen MBB Master
Good to see another Cruzbike here in the LA area.Let me know when you want to do a ride. Jack
 

Manalive

Member
Looking at those photos makes me wonder: if you hit a large bump, is there any danger of the front brake hitting the frame? Is that ever an issue on conversions with mountain-bike forks?

Regards,

Alex
 

cristin

New Member
as far as the front brake hitting the frame, I guess it would be possible if there were a huuuuge bump.

The rock shox have the ability for a lot of travel, but they are also adjustable. I have them pumped up to over 200psi to keep them pretty solid, so the brake is about an inch below the frame.

I had another long test ride today, and I'm pretty sure I'm going to need to change to a shorter crank, at least until my knees get used to cycling again. Sheldon Brown mentions that some recumbent riders benefit from shorter cranks on their recumbents than on their road bicycles.

On today's ride I was a lot steadier on the bike this time, I only almost fell over three times, and managed to start from standing still without a problem.
 

Biscuit

Member
Cristin,

Could you tell me who makes the 700c brake adapters?
I need to get the adapter for my next build.

Nice build by the way.

Rod
 

Doug Burton

Zen MBB Master
Hi Rod,

Mavic makes 'em.

http://www.speedgoat.com/Catalog.aspx/Browse?Prod=4181

You can also use road calipers (and short-pull levers) if you prefer.

Good luck on your build.

Best,

Doug
 
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