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Old 08-12-17, 09:29 AM   #1
DLBroox
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Knobby tires on a Mu Uno?

I have a Mu Uno I hadn't been riding much lately. I've opted to ride my full size Trek mountain bike for quite a while. It's a big heavy beast, and getting it up and down the stairs alone has been a problem. It's 35 pounds and I'm a hundred pound gal! It's a job I tell ya. But I love how I can ride on any surface and just ride over stuff without feeling as if I'm going to lose the bike from under me.

I recently tweaked my knee and can't squat to lift the bike up, so I took my Mu out for a spin and had a great time on it. I still do not like the coaster brake and might try to find someone to help me disengage it. But it really is a great ride. It fits my size and weight way better than the big beast, which might find a new home with my nephew soon.

I would like to put knobby tires on the Mu I think. The stock ones it came with are nice and fast, but they are pretty slippery when I'm on a bike path with lots of leaves, and I would like to be able to ride through grass or crunch through other types of surfaces if need be...mostly trying to avoid idiot Miami drivers who like to drive so close to me I have to go off the road.

Anybody have any tire suggestions? I realize this might slow the bike a bit, but I'm willing to trade speed for being able to ride on a variety of surfaces.
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Old 08-12-17, 04:35 PM   #2
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Take a look at some quality BMX tyres. Personally I would not want knobbys on any bike.
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Old 08-13-17, 06:09 AM   #3
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Take a look at some quality BMX tyres. Personally I would not want knobbys on any bike.
Yeah maybe I shouldn't.
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Old 08-13-17, 06:56 AM   #4
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Install the front brake on MU, that will give you more confidence on the road. About the tyres, I'm happy with the stock Marathons. I'm not a fan of knobbys too.
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Old 08-13-17, 07:00 AM   #5
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I have a couple of Dahon Mu D10s.--I'm a dealer and I bought ten of them last fall. They come with 20 x 2.2 tire that is quite wide but is kind of a high pressure/ low pressure tire. It has a herrringbone style tread. I stripped one of the bikes down and sold just the parts. I have the tires up on ebay right now. They are a nice rolling wide tire that will fit your Mu.

Two 20"x2.2" Folding Bike Tires CST Vault High Pressure Folding Bicycle w/ Tubes | eBay

Any of the Street BMX tires will probably work well for you also. I agree with Bad Bad Mother that knobby tires unless you are riding in the dirt are not the best option. Wide tires will give you more stability.
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Old 08-13-17, 07:14 AM   #6
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I have a couple of Dahon Mu D10s.--I'm a dealer and I bought ten of them last fall. They come with 20 x 2.2 tire that is quite wide but is kind of a high pressure/ low pressure tire. It has a herrringbone style tread. I stripped one of the bikes down and sold just the parts. I have the tires up on ebay right now. They are a nice rolling wide tire that will fit your Mu.

Two 20"x2.2" Folding Bike Tires CST Vault High Pressure Folding Bicycle w/ Tubes | eBay

Any of the Street BMX tires will probably work well for you also. I agree with Bad Bad Mother that knobby tires unless you are riding in the dirt are not the best option. Wide tires will give you more stability.
That's helpful to know. Rather than knobby, wider would be more stable. Makes sense. But when I looked at the bike I think 2.2 inches is too wide. I have the front brake on and it seems like they wouldn't fit.
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Old 08-13-17, 08:40 AM   #7
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That's helpful to know. Rather than knobby, wider would be more stable. Makes sense. But when I looked at the bike I think 2.2 inches is too wide. I have the front brake on and it seems like they wouldn't fit.
The tires in the listing came off the Dahon Mu frame I stripped for parts. I have another set that I rode about 100 miles on my Mu d10. I have two sets of wheels/tires for my Mu. But any BMX tire you find up to a 2.0 should fit. The BMX freestyle tires are street tires designed to grip on pavement and a bit of dirt.

I used to race BMX (I was State Champ at one time but that is another story) and there are a lot of high pressure (70-100 psi) wide 1.9/2.0 bmx tires available that will work well for you. Most BMX tracks are very hardpack dirt---so the tires don't have knobs, they are designed to get traction on hardpack.

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Old 08-13-17, 08:57 AM   #8
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The tires in the listing came off the Dahon Mu frame I stripped for parts. I have another set that I rode about 100 miles on my Mu d10. I have two sets of wheels/tires for my Mu. But any BMX tire you find up to a 2.0 should fit. The BMX freestyle tires are street tires designed to grip on pavement and a bit of dirt.

I used to race BMX (I was State Champ at one time but that is another story) and there are a lot of high pressure (70-100 psi) wide 1.9/2.0 bmx tires available that will work well for you. Most BMX tracks are very hardpack dirt---so the tires don't have knobs, they are designed to get traction on hardpack.
Thank you so much for the valuable input!
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Old 08-13-17, 10:51 PM   #9
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Anybody have any tire suggestions? I realize this might slow the bike a bit, but I'm willing to trade speed for being able to ride on a variety of surfaces.
Iím currently testing a Maxxis DTH 2.2 and a Maxxis Rizer 2.15. Both fit fine but for overall performance on dirt and street I prefer the DTH. On the inexpensive side I tested a Schwalbe Black Jack 1.9. For such an aggressive tread it wasnít bad on the street but it didnít have enough float in really soft dirt and sand Ė Iím considerably heavier than you.
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Old 08-14-17, 09:03 AM   #10
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Iím currently testing a Maxxis DTH 2.2 and a Maxxis Rizer 2.15. Both fit fine but for overall performance on dirt and street I prefer the DTH. On the inexpensive side I tested a Schwalbe Black Jack 1.9. For such an aggressive tread it wasnít bad on the street but it didnít have enough float in really soft dirt and sand Ė Iím considerably heavier than you.
I really like what they look like on the bike!
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Old 08-28-17, 05:43 PM   #11
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Update: I bought the CST Vaults, the 2.2 and they don't fit under the front brake unless I have only about 50 or 60 pounds in them. Is there anything I can do about that? Is there a way to adjust the brakes or do people just ride them with lower air pressure?

At 80 pounds the back one almost rubs on the kickstand which I've never been able to get off the bike.
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Old 08-29-17, 01:39 AM   #12
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If they are too close to both kickstand and brakes there is not much you can do. If you want those tyres "at any cost" you can install canti brakes.

Tyres change shape (profile) when put on a different rim so maybe a much wider rim could get you there but such a rim is much heavyer and we are talking some money here. Best would be if you could borrow a wheel or two and install the tyres just to see what happens.

With the right tools you should be able to get the kickstand off. Give us a close up picture if you want us to suggest what to do.
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Old 08-29-17, 05:54 AM   #13
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Yeah I just don't have the right tool to get the kickstand off. And I'm not a big brawny guy, I'm a not so big gal so I have to wrestle with things! I'll probably take it to an LBS later.

The bigger question is do people just ride on a lower air pressure on the Mu so the tires fit?
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Old 08-29-17, 07:12 AM   #14
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I've been studying up on tire pressure myself since this is a thread that's not getting a lot of play.

I have learned that what's written on the tire isn't necessarily what people put in a tire. I never had a good reason to research this before I guess and always just inflated tires as per the numbers on them. But it seems because I am only a hundred pounds, 50 or 60psi in these tires might be optimal for me anyway.

So if anyone wants to weigh in I'd be happy to hear. I now know there are a million threads on tire pressure so maybe it's a boring well worn topic!
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Old 08-29-17, 07:23 AM   #15
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I run low pressures compared to most, it would seem, and I hardly ever get punctures. A large surface area that conforms to sharp objects seems to be effective in this regard.
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Old 08-29-17, 08:34 AM   #16
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Yeah I just don't have the right tool to get the kickstand off. And I'm not a big brawny guy, I'm a not so big gal so I have to wrestle with things! I'll probably take it to an LBS later.

The bigger question is do people just ride on a lower air pressure on the Mu so the tires fit?
Being a gal is not the problem. I sometimes tell my son he is wresteling windmills. It is about the right tools, the right technique and the right attitude!

Edit:
In general: You are riding a small wheeled alu bike so IMHO fatter tyres makes sense. Also you are not heavy so that too speaks for not so much preassure needed.

Surface is important. Bumpy road asks for wider tyres and lower preassure.

If you can ride your present tyre at a wery low preassure you need to ask the tyre. There is a "minimum" preassure on the sidewall. If you go lower that could shorten the life of the tyre but I guess you can live with that?

Last edited by badmother; 08-29-17 at 08:46 AM.
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Old 08-29-17, 09:24 AM   #17
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Being a gal is not the problem. I sometimes tell my son he is wresteling windmills. It is about the right tools, the right technique and the right attitude!

Edit:
In general: You are riding a small wheeled alu bike so IMHO fatter tyres makes sense. Also you are not heavy so that too speaks for not so much preassure needed.

Surface is important. Bumpy road asks for wider tyres and lower preassure.

If you can ride your present tyre at a wery low preassure you need to ask the tyre. There is a "minimum" preassure on the sidewall. If you go lower that could shorten the life of the tyre but I guess you can live with that?
I like the way you think! Wrestling windmills indeed.

And yes I can live with shortening the life of the tire. They were a good deal and I do want to get riding.
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Old 08-29-17, 12:30 PM   #18
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I try to have a "if you/they can do it I can do it" atitude, and suprisingly often that helps but sometimes you just need somebody to hold the bike/item you work on so that you can use all your strenght. A stuck kickstand bolt sounds like such a situation.

On the tyres: What you need to keep an eye on is if the preassure is very low you risk having snakebite punctures: Snakebite flats by Jobst Brandt
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Old 08-29-17, 05:34 PM   #19
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Turns out even at 50 psi they don't fit under the front brake. Kinda pissed. I'm out 35 bucks unless I can unload them on Craigslist. About to unload the bike too. Right now it's banished to the corner of a room.

I don't know how they fit on the other Mu's. Different brakes?
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Old 08-30-17, 02:14 AM   #20
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Do not give up, especially on the bike. Try to sell the tyres, Looks like 2,0 can fit but not 2,2. If the bike has the same fork Big Apple 2,0 can be used. I use them on most of my small wheelers and some bigger wheelers.

http://www.bikeforums.net/folding-bi...big-apple.html

Edit: I was going to suggest you file down the knobs but after googeling your tyres it looks like there is not much to file down. If they were regular "knobby tyres" that could have been an option.

Problem is:
-Different Dahom MU bikes could have a different fork.
-Two different 2,2 tyres could be of different size like two different size7 shoes can be of different size.
-same tyre on two different rims give you a different profile so one may fit and one may not when space is limited.

If you are keen on keeping as fat tyres as possible you can use cantiliver brakes but they are wide so sticking out a bit when folded. Some would claim they are oldfashioned but they work well, I just put some new ones on a MTB becouse I wanted space for tyres.

If you go this way make sure you get them so you can use regular brake pads. The modern cantis is much easyer to set up.
https://www.sjscycles.co.uk/brakes/t...tilever-brake/


Your other option is to sell the tyres and buy new ones, I would not buy bigger then 2.0

Last edited by badmother; 08-30-17 at 03:52 AM.
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Old 08-30-17, 04:17 AM   #21
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Do not give up, especially on the bike. Try to sell the tyres, Looks like 2,0 can fit but not 2,2. If the bike has the same fork Big Apple 2,0 can be used. I use them on most of my small wheelers and some bigger wheelers.

http://www.bikeforums.net/folding-bi...big-apple.html

Edit: I was going to suggest you file down the knobs but after googeling your tyres it looks like there is not much to file down. If they were regular "knobby tyres" that could have been an option.

Problem is:
-Different Dahom MU bikes could have a different fork.
-Two different 2,2 tyres could be of different size like two different size7 shoes can be of different size.
-same tyre on two different rims give you a different profile so one may fit and one may not when space is limited.

If you are keen on keeping as fat tyres as possible you can use cantiliver brakes but they are wide so sticking out a bit when folded. Some would claim they are oldfashioned but they work well, I just put some new ones on a MTB becouse I wanted space for tyres.

If you go this way make sure you get them so you can use regular brake pads. The modern cantis is much easyer to set up.
https://www.sjscycles.co.uk/brakes/t...tilever-brake/

https://www.youtube.com/watch?annota...&v=FvFira2dAPY

Your other option is to sell the tyres and buy new ones, I would not buy bigger then 2.0
Thanks for all the insight into what went wrong. I have cantilevers on my single speed full size bike and have never had a problem with them. But I'll probably get a new set of tires so they can be inflated properly without any issue. This tire comes in a 1.95 size. I'm probably most mad at myself because I knew I should have gotten those in the first place, but I was swayed by the information here.

Might be a while though. I'm in no mood to deal with them right now. Maybe in a week or two...
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Old 08-30-17, 09:34 AM   #22
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I don't understand what you mean by fitting under the brake? I 'm assuming you have V-brakes, is the cable on top hitting the tire?

It is normal to have to partially deflate the tire to get it off the bike---

On another point. I would not hesitate with your 100 pound weight to run 35-50 psi in your tires. With really narrow (under 1.5) tires I would not go below 40 psi (with your weight).

Softer tires are much more comfortable to ride.

Last edited by Rick Imby; 08-30-17 at 09:38 AM.
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Old 08-30-17, 11:08 AM   #23
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I don't understand what you mean by fitting under the brake? I 'm assuming you have V-brakes, is the cable on top hitting the tire?

It is normal to have to partially deflate the tire to get it off the bike---

On another point. I would not hesitate with your 100 pound weight to run 35-50 psi in your tires. With really narrow (under 1.5) tires I would not go below 40 psi (with your weight).

Softer tires are much more comfortable to ride.
The bike has a side pull brake on the front. The tire inflated to 50 psi rubs the brake.

Now I understand why we have a different result with the same tires. Guess "what kind of brakes are you running?" should have been my question before I bought them.
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Old 08-30-17, 12:25 PM   #24
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Pictures help,... LOL!!!
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Old 08-30-17, 04:23 PM   #25
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Am I right to remember (although a bit late) that the MU uno is delivered with a coaster brake only and that you need to install the front brake yourself? No bosses for V brakes or caliper brakes. Only a new fork can fix that.

I was also hoping for pictures but I know it is not always an option.
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