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-   -   Motobecane Fantom Cross UNO (http://www.bikeforums.net/recreational-cyclocross-gravelbiking/453476-motobecane-fantom-cross-uno.html)

bigbenaugust 01-08-13 11:54 AM

I get a little toe strike with the 175s, but I also do on my Fantom CX with 172.5s, so it's a matter of coordination for me.

There is a compatible 170mm 110mm BCD origin8 crankset sitting in my parts bin. I could do the swap, but a) it's chrome and not black, and b) at least mathematically, the shorter cranks would slow it down a little more.

aquateen 01-10-13 12:11 PM

got my uno this week and so far i love it. hopefully ill put some miles on it this weekend and dial in the fit.

frantik 01-10-13 12:21 PM

Quote:

Originally Posted by bigbenaugust (Post 15133709)
There is a compatible 170mm 110mm BCD origin8 crankset sitting in my parts bin. I could do the swap, but a) it's chrome and not black, and b) at least mathematically, the shorter cranks would slow it down a little more.

i don't have the orange one but i think the white one looks better with a silver crank.. i actually think the more silver, the better, since it tends to make the decals less obvious :lol:

i'm not really familiar with how crank arms affect gearing/speed, but i know i can spin the 170mm arms a little easier than the 175mm arms on my mtbs.

frantik 01-10-13 12:26 PM

Quote:

Originally Posted by aquateen (Post 15141637)
got my uno this week and so far i love it. hopefully ill put some miles on it this weekend and dial in the fit.

:thumb:

bigbenaugust 01-10-13 01:37 PM

Quote:

Originally Posted by frantik (Post 15141695)
i don't have the orange one but i think the white one looks better with a silver crank.. i actually think the more silver, the better, since it tends to make the decals less obvious :lol:

i'm not really familiar with how crank arms affect gearing/speed, but i know i can spin the 170mm arms a little easier than the 175mm arms on my mtbs.

According to the late great Sheldon Brown's Gear Calculator... hmm, maybe it's the same speed for cadence with either crank. Oops, guess I will dig that crankset out and try it. :)

frantik 01-10-13 02:02 PM

yeah gear inches aren't affected by crank arm length, but Sheldon's "gain ratio" is

it seems for average sized people, the reports are 170 is easy to spin while 175 offers more leverage for climbing/mashing. thats why road bikes usually come with 170 and mtbs with 175

I went with the 170 just cause it was what i had that fit the 39t ring..

bigbenaugust 01-10-13 02:06 PM

Well now I am just overcome with curiosity and will have to try it. My knees might appreciate it.

bigbenaugust 01-31-13 05:04 PM

https://lh6.googleusercontent.com/-v...129030941a.jpg

So far I am up to replacing the wheels, crankset, seat, z-link cables, toe clips, and bars/levers. I'd say I changed the stem, but the bike didn't come with one. :)

Approximately 2220 miles in 10 months (alternating with my other bikes, of course).

frantik 02-02-13 12:29 AM

why'd you replace the wheels? did you have a set handy? I trued my wheels recently using my new truing stand, haven't ridden the Uno for a bit though.. need to finish swapping on the Deore cantis with Avid Tri-dangle hangers to replace the z-links and wrap the bars with the new Gary II bar i installed..

a ton of parts from the Uno have ended up on this MTB :lol: crankset, brakes, levers, handlebar and even the bar tape

http://imageshack.us/a/img585/4122/p1010091n.jpg

bigbenaugust 02-02-13 12:36 AM

The stock Jalco wheels had a lot of bad reviews, so I was afraid. They're still sitting in my shed, though. The Alex SUB rims are 29er mountain rims, though... tough stuff.

frantik 02-02-13 12:44 AM

yeah the stock wheels definitely have bad reviews.. i'm hoping the fact i trued and also tightened the tension somewhat will keep them from going out of true. I was wondering if you tacoed them already or something.

how wide are those 29er rims, and what tires did you put on? cool to know you can fit 29er rims on it

bigbenaugust 02-02-13 12:59 AM

Right now, I have a 32mm Panaracer Pasela TG in the front and a 32mm Panaracer UrbanMax in the rear. I have not checked them for width, and it's dropped off of the Alex Rims site. BikeIsland says 20mm.

AK404 03-02-13 04:13 PM

Quick question about the Uno: How much does it weigh?

frantik 03-02-13 07:15 PM

~23lbs with the stock setup

bigbenaugust 03-03-13 11:16 PM

I've never bothered, but it sure feels and rides lighter than my Fantom CX.

SSbalt 03-04-13 08:16 AM

Anybody using these things for actual CX racing, and not just commuting?

I have a stripped down fixed gear that I use for commuting - but I want to get into CX racing on the cheap - was looking at FCU's obviously because they are the only real option. I'm assuming pedals, tires, and brakes+hoods are the first things that have to go.

frantik 03-04-13 12:41 PM

Quote:

Originally Posted by SSbalt (Post 15341936)
I'm assuming pedals, tires, and brakes+hoods are the first things that have to go.

along with pretty much everything else.. i've replaced cranks/chainring, brakes, levers, handlebar and stem. Still want to replace the tires and pedals. the tires are ok i just want something fatter (which is why i got this frame in the first place)

i finally got back to finishing up my UNO the other day with the new brakes/levers/bars.. need to take some pics.

frantik 03-05-13 07:26 PM

maybe i'm just used to riding MTBs too much, but i've been wondering what the UNO might be like with a riser bar.. I put a Gary bar on there (a dirt drop style drop bar) and the drop is too low. Maybe i just need a riser stem instead of rider bars. I never really liked rinding in the drops on the stock bar but i just blamed that on the anatomic drops and crappy levers

anybody converted their UNO to a flat bar or a riser bar? I'm pretty tempted to try it, though i JUST set up the new bar and brakes so redoing that is mostly what's holding me back

Vlaam4ever 03-17-13 07:17 PM

I just picked up a used FCU yesterday ~250 . I really pumped about it. I spent some time yesterday wrenching on it. It needed new brake pads to be safe to ride on the road. But I see myself spending some more on it in the coming weeks.

Initial impressions are that it rides very nice. Gearing is perfect.
The levers, bars and wheels are sub par for my standards and will get replaced in the next month or 2.
The graphics are hideous. I have a the white one, so I'll be replacing the bar, stem and tape with some thing silver or white just to reduce the contrast a bit. Any suggestions on covering or hiding the graphics on the top bar.

Can anybody recommend a wheel replacement. I'm not sure what is needed to replace them.

bigbenaugust 03-17-13 11:22 PM

Quote:

Originally Posted by frantik (Post 15349467)
maybe i'm just used to riding MTBs too much, but i've been wondering what the UNO might be like with a riser bar.. I put a Gary bar on there (a dirt drop style drop bar) and the drop is too low. Maybe i just need a riser stem instead of rider bars. I never really liked rinding in the drops on the stock bar but i just blamed that on the anatomic drops and crappy levers

anybody converted their UNO to a flat bar or a riser bar? I'm pretty tempted to try it, though i JUST set up the new bar and brakes so redoing that is mostly what's holding me back

I have seen pics on the interwebs of people with flat bars on their Unos. Perhaps they were risers and I was not paying attention.

frantik 03-18-13 04:58 AM

Quote:

Originally Posted by Vlaam4ever (Post 15398530)
Initial impressions are that it rides very nice. Gearing is perfect.
The levers, bars and wheels are sub par for my standards and will get replaced in the next month or 2.
The graphics are hideous. I have a the white one, so I'll be replacing the bar, stem and tape with some thing silver or white just to reduce the contrast a bit. Any suggestions on covering or hiding the graphics on the top bar.

Can anybody recommend a wheel replacement. I'm not sure what is needed to replace them.

I *hated* the graphics until I added a silver crankset and silver brakes.. now i don't mind them as much. Reflective tape, white vinyl tape or white electrical tape all could be used to easily cover up the logo.

As far as the wheels.. I just tightened the spokes and trued them up. I don't ride my UNO a lot but I would just keep the stock wheels on there for now and wait until they are toast or if you get tired of truing them

Vlaam4ever 03-18-13 09:18 AM

Quote:

Originally Posted by frantik (Post 15399771)
I *hated* the graphics until I added a silver crankset and silver brakes.. now i don't mind them as much. Reflective tape, white vinyl tape or white electrical tape all could be used to easily cover up the logo.

As far as the wheels.. I just tightened the spokes and trued them up. I don't ride my UNO a lot but I would just keep the stock wheels on there for now and wait until they are toast or if you get tired of truing them

I like what you did with yours. The silver crank looks nice. What crank is that? Most of the single cranks I found are built for track have 42 or 46 rings on them. That may be a bit tall for me to push on the uphills.

I also like your bars how comfortable are they? Mine has this hideous red tape tha make the graphics even worse. I'm looking to tune downt the collor pallate significintly on it.

frantik 03-18-13 02:58 PM

Quote:

Originally Posted by Vlaam4ever (Post 15400565)
I like what you did with yours. The silver crank looks nice. What crank is that? Most of the single cranks I found are built for track have 42 or 46 rings on them. That may be a bit tall for me to push on the uphills.

I also like your bars how comfortable are they? Mine has this hideous red tape tha make the graphics even worse. I'm looking to tune downt the collor pallate significintly on it.

the crank arms are Shimano 600 EX cranks (from the mid 80s) they are 130bcd and can take a ring as small as 39t (which is the size i've got on mine)

The bars i had on in the last pic i took were the On One Midge bars.. they were ok but too wide for me. I have an Origin 8 Gary II bar on there now but i need a more "riser" stem since they have such a low drop. i've been contemplating trying out some of these riser bars i have on hand just for fun but right now i'm so busy haven't had much time to work on any of my bikes

bigbenaugust 03-18-13 03:02 PM

I have silver Origin-8 cranks on mine and some orange Scotchlite.

SnowJob 03-18-13 03:58 PM

Quote:

Originally Posted by SSbalt (Post 15341936)
Anybody using these things for actual CX racing, and not just commuting?

I have a stripped down fixed gear that I use for commuting - but I want to get into CX racing on the cheap - was looking at FCU's obviously because they are the only real option. I'm assuming pedals, tires, and brakes+hoods are the first things that have to go.

I've seen and raced against quite a few ss rigs at 'cross races, but have never seen one of these BD bikes. That doesn't mean jack ****, though, because people ride whatever they have, especially at the "citizen's" class, or beginner, races. So I say go for it. You may want to make sure your gearing is 'cross race friendly, though.


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