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Old 03-12-12, 09:18 PM   #1
rayjai
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Help with my Dahon Speed Uno

Hi, I ordered a Dahon Speed uno and I will be getting it sometimes this week.
I plan to add back brakes to it because I never used coasters breaks before and I haven't biked since i was 10.

Can anyone recommend me what brakes I should get (or fits) for my speed uno?

I also plan on getting fenders for it, but not sure if the thin or wide ones fit the Speed uno.

can someone with a speed uno help me out.

Thanks
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Old 03-12-12, 10:48 PM   #2
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http://www.thorusa.com/accessories/wheels.htm
Tektro R538 Brakes
Same place for fenders
http://www.thorusa.com/fender/customfender.htm
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Old 03-12-12, 11:43 PM   #3
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Thanks

How about the grip for the brakes?
and which size fender fits the uno?
thanks
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Old 03-13-12, 01:25 AM   #4
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You'll be fine. Coaster brakes are kids stuff.

If you're going to fit a brake, fit a front one. More than 60% of braking efficiency comes from the front.
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Old 03-13-12, 09:09 AM   #5
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There are no rear brake mounting bosses on the UNO .. what looks like a mounting is a thin aluminum tube meant for mounting a fender, not a caliper brake... My Mu UNO came with a long reach Tektro front caliper that I installed .. as snafu mentioned, enjoy using the coaster brake and plan on installing a front brake...
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Old 03-13-12, 02:28 PM   #6
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Both will fit fine,if u plan to put big apples on the bike down the road use the wide ones
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Old 03-14-12, 12:10 AM   #7
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Thanks guys,
I guess i'll go with front brakes only, I'll see how that works out while i'm relearning how to bike. haha
since I only need one brakes, will any Tektro brakes work? or only the Tektro R538 Brakes fits my bike?
I'm looking at some on ebay, and some are fairly cheap.
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Old 03-14-12, 01:53 AM   #8
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The amount of cable that the lever moves when pulled has to match that needed by the brake. So lever must match the caliper, and the caliper must reach the rim, not the tyre.

Someone will be long in a minute to diagnose what fits what.

'Brake' is singular. You only need one 'brake' per wheel. :-)
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Old 03-14-12, 03:55 AM   #9
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Originally Posted by snafu21 View Post
'Brake' is singular. You only need one 'brake' per wheel. :-)
Oh yeah? Then why is "zero brakes" plural? Hmmm?
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Old 03-14-12, 04:38 AM   #10
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The spoken and colloquial verb form against the misused plural noun form, I think. We do not write as we speak.

Although there are some funny bikes around with two rear brakes, (rayjai nearly had one) and only one er, brakes, on the front.

And if one is broke, one might not have no brakes at all. That would be a heart-braker. (sp?)

Er...

Last edited by snafu21; 03-14-12 at 04:43 AM.
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Old 03-14-12, 08:25 AM   #11
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You are looking for the long reach 47-57mm. I would recommend a pair if you decide to change the rear wheel to a 2 or 5 speed.
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Old 03-14-12, 08:53 AM   #12
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Can those Tektro brakes accommodate Big Apples or similar width tyres?
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Old 03-14-12, 10:02 AM   #13
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You are looking for the long reach 47-57mm. I would recommend a pair if you decide to change the rear wheel to a 2 or 5 speed.

Where would you mount the rear caliper?
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Old 03-14-12, 01:34 PM   #14
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Where would you mount the rear caliper?
My bad , I just read what you wrote earlier. I thought it was cromoly like the rest of the frame.
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Old 03-14-12, 09:14 PM   #15
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My bad , I just read what you wrote earlier. I thought it was cromoly like the rest of the frame.
I'm incorrect on the material.. I forgot the Speed is steel.. but it still might be thin tubing and not a caliper brake mount .. maybe you can take a close-up of the part at some point to clarify..
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Old 03-15-12, 07:43 PM   #16
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Here is best I could do
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Old 03-15-12, 11:06 PM   #17
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I just got my Speed Uno today from THORUSA. The box was crazy beat up with holes in it, but the bike looks ok. I think i'll just go with the front brakes then. I can see the rear brake wires getting annoying.

I went to this Bike guy near me (he likes to rebuild old bikes), he said he doesn't think a caliper would fit in the back, If I really wanted a lever brake for the back, I would need a disc brake.

Last edited by rayjai; 03-15-12 at 11:18 PM.
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Old 03-16-12, 05:37 AM   #18
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Originally Posted by rayjai View Post
I went to this Bike guy near me (he likes to rebuild old bikes), he said he doesn't think a caliper would fit in the back, If I really wanted a lever brake for the back, I would need a disc brake.
Rear disc brake retrofits are not that simple. First you need the tabs to mount the caliper, usually these are welded on. Then you need a new hub to accept the disc, usually needs different "dishing" too. Plus you will still need to run either a cable or a hose (juice) from the handlebars to the caliper.

Discs at the rear are usually underutilized, particularly on a short wheelbase upright due to weight transfer to the front wheel. If you are going to use a disc, the front is usually a better place.

Congrats on your new bike.
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Old 03-16-12, 08:38 AM   #19
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Here is best I could do
Thanks for the pic.. that's not a rear brake caliper mount..
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Old 03-16-12, 08:57 AM   #20
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Yea, he told me the same thing, that's why I'm going to just go with the front brakes and learn to use the coaster.
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Old 03-17-12, 06:23 PM   #21
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Sorry, he said drum brakes not disc brake, still new to biking tech.

so, if I get the Tektro R538 calipers, what Tektro lever should I get? I should stick with the same brand for consistency right?
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Old 03-21-12, 01:17 AM   #22
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Bump?

does the Tektro 319AC RH BMX Short Pull lever work?

whats the difference between the tektro calipers?
I'm trying to learn more about these parts but google isn't helping.
they all sound the same in the descriptions.

Tektro R730 Long Reach Road Calipers Silver 47-57mm
Tektro R538 Road Caliper Set Front & Rear Silver 47-57mm Reach
Tektro R539 Road Caliper Set Front & Rear Black 47-57mm QR

Thanks

Last edited by rayjai; 03-21-12 at 01:43 AM.
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Old 03-22-12, 12:16 AM   #23
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R538 don't have a cable quick release, R539 do. A QR is of limited use with fat tyres fitted, as it only releases the caliper enough for a skinny road tyre to be slipped out.

Bike stuff becomes more expensive as it gets lighter or smaller. You only need one caliper, (front) not a set, (front & back), and it has to fit a) the reach (mounting hole to rim) and also fit in b) whatever mounting hole you have the fork crown. See the R559 here. Then get the lever, a cable, cable ends, and a cable outer cut to fit. It's easy once the caliper is on.

What I don't know is a), or b), or whether the mounting hole is counter-sunk, and a quick solution is to whack the bike down to your local bike shop, or get a bikey chum in. Thor, the bike dealer you got the bike from, might also be able to help. Bike shops often have older stock, cheaper, and can fit you up with the cable and outer. It's a very small job.

But you probably have learned how to use the coaster brake by now.

See previous note on plurals. If you mail-order 'calipers', you might get front and rear. A caliper is a single brake.
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Old 03-22-12, 12:55 AM   #24
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Thanks, I got my bike from ThorUSA online because all the bike shops around me don't carry the Speed UNO. I called up the shops and they don't know what parts would fit it either. I get off pretty late and by then the shops are closed and they don't open on Sunday. I could bring my bike to the city, but it's such a far trip.

So, if I get the R538, I will need to deflate my tire to install it? The R539, with a quick release, I wouldn't need to do so.
I know I only need one, but amazon only sell sets.

For lever, I see different styles, BMX, V and non V. I know I want a Reach type, but that's all I know.

I'm going to try to install this myself so I can learn more about maintaining my bike.
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Old 03-22-12, 03:57 AM   #25
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I do not know brakes from name and number but i know for sure you do not want V brake levers! If they are good for caliper or canti brakes you shoulf be fine.

I do not know BMX muc hbut I am sure some of the levers could work. I know BMX bikes are sold with different types of brakes (also caliper brakes) but personally I would stay away if I was not sure.

If Amazon only sell pairs stay away from Amazon, unless the pair is cheaper than a single one of same qualitu shipping included.
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