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Seat tube mud deflectors

Old 01-05-22, 12:01 PM
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Germany_chris
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Seat tube mud deflectors

I'll admit I'm sharp as a bowing ball but I no kidding saw a couple of mountain bikes online with a mud deflector on the seat tube and my Duck Duck Go Foo just isn't up to finding it. "seat tube mud deflector, MTB mud deflector, and. bike mud deflector has lead me to a bunch of nothing.


I'd like to know the proper search to a deflector because chains and my feet
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Old 01-05-22, 12:07 PM
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"Fenders", perhaps? Topeak makes some nice ones with a mounting bracket that attaches to the seattube and the fender itself clips onto it.
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Old 01-05-22, 12:36 PM
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Peruse various fender manufacturers' sites. Don't know what you saw, but SKS makes a bunch of snap-on mudguards.
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Old 01-05-22, 12:44 PM
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https://sks-us.com/collections/fende...se+rear-fender

I limited the search results but you can expand to see all.

A similar product (X-Blade) which I mended after a MTB crash. Use it on both bikes. https://www.competitivecyclist.com/s...0%26%20Touring

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Last edited by rsbob; 01-05-22 at 01:23 PM.
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Old 01-05-22, 02:52 PM
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Not the best idea there, IMO. Find an old rubber boot and cut it where the mould fits best. Mine certainly work fine. I can ride this in spring puddles all day. That rear fender needs to be full length. Smaller tire if needed.
See how I also have one behind the BB. I use 4 mm bolts and big washers against the rubber. Bolt head inside will be easier to clean. They last for years.

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Old 01-06-22, 05:58 AM
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Try googling "mtb mudguard"
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Old 01-06-22, 06:01 AM
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Originally Posted by rsbob View Post
https://sks-us.com/collections/fende...se+rear-fender

I limited the search results but you can expand to see all.

A similar product (X-Blade) which I mended after a MTB crash. Use it on both bikes. https://www.competitivecyclist.com/s...0%26%20Touring

That's a really nice Bianchi you have there Bob! I used to have that exact same mudguard on my hardtail, but could never get my head around fitting it to my road bikes, lol. I just use an Ass-saver flap, which of course wouldn't work with your saddle bag.
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Old 01-06-22, 08:30 AM
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I have something like below. it's good for keeping my water bottle cleaner

do you mean these things?

Mucky Nutz Gut Fender

SKS Mud-X Front Bicycle Fender
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Old 01-06-22, 10:41 AM
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Seat tube mounted, like this?



‘19 T-Lab X3

Those are from Ass Savers https://ass-savers.com/
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Old 01-06-22, 10:44 AM
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Just get fenders. I have a set of SKS fenders. They attach with straps so no bungs are needed. They only take a few seconds to put on and remove.

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Old 01-06-22, 11:08 AM
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Are you looking for a Deflector to go below and in front of the current rear fender. Something to extend down to the bottom bracket? I’d just cut up a plastic bottle and punch holes in it to zip tie it to the seat tube.
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Old 01-06-22, 11:58 AM
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Originally Posted by GlennR View Post
Just get fenders. I have a set of SKS fenders. They attach with straps so no bungs are needed. They only take a few seconds to put on and remove.

Another easy-on/easy-off fender set is the Crud RoadRacer Mk3. Sleek, super light, and full coverage (the front is long enough to protect toes), including front derailleur protection:


aluminum Kinesis Racelight 4S

https://www.crudproducts.com/roadracer-mk3/
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Old 01-06-22, 12:19 PM
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I think the OP should concentrate on finding some additional chainrings.
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Old 01-06-22, 12:28 PM
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Oh, is that the OP’s bike pictured in the OP? I was confused, and thought that was an example, but now I see they’re looking for a piece to extend their existing rear fender down to the bottom bracket. I guess they’re looking for front fender extended coverage to protect toes, too? It’s a confusingly phrased OP, anyway, which explains the diverse replies.
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Old 01-06-22, 03:10 PM
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Originally Posted by indyfabz View Post
I think the OP should concentrate on finding some additional chainrings.
And a bigger frame.
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Old 01-06-22, 09:17 PM
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Originally Posted by PeteHski View Post
That's a really nice Bianchi you have there Bob! I used to have that exact same mudguard on my hardtail, but could never get my head around fitting it to my road bikes, lol. I just use an Ass-saver flap, which of course wouldn't work with your saddle bag.
It is rainy day only since it clips on and off in 10 secs. Thanks for the compliment,
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Old 01-06-22, 09:48 PM
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Originally Posted by Germany_chris View Post
I'll admit I'm sharp as a bowing ball but I no kidding saw a couple of mountain bikes online with a mud deflector on the seat tube and my Duck Duck Go Foo just isn't up to finding it. "seat tube mud deflector, MTB mud deflector, and. bike mud deflector has lead me to a bunch of nothing.
I'd like to know the proper search to a deflector because chains and my feet
Most of the ones I remember being called "deflectors" are zip-tied to the downtube.

To keep your feet and crankset cleaner from front tire spray, I usually think of mudflaps. There are commercial ones, but a lot of folks cut them out of used plastic milk jug/Coke bottle/bike bottle materials and add them on to the end of their existing fenders.

As for your rear fender though, just get a full length one that goes right up to the bottom bracket.
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Old 01-07-22, 10:56 AM
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Originally Posted by rsbob View Post
It is rainy day only since it clips on and off in 10 secs. Thanks for the compliment,
Yeah I like the quick release strap on those. Very convenient. To be honest I never even thought of fitting it on a road bike.
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Old 01-07-22, 12:18 PM
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Originally Posted by Germany_chris View Post
I'll admit I'm sharp as a bowing ball but I no kidding saw a couple of mountain bikes online with a mud deflector on the seat tube and my Duck Duck Go Foo just isn't up to finding it. "seat tube mud deflector, MTB mud deflector, and. bike mud deflector has lead me to a bunch of nothing.


I'd like to know the proper search to a deflector because chains and my feet
You can put a mudflap on the front, but it won't do a lot of good since your rear fender is so short in the front. Try something like the Planet Bike Cascadia. https://www.amazon.com/Planet-Bike-C...s%2C467&sr=8-7
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Old 01-07-22, 03:01 PM
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Originally Posted by chaadster View Post
Oh, is that the OP’s bike pictured in the OP? I was confused, and thought that was an example, but now I see they’re looking for a piece to extend their existing rear fender down to the bottom bracket. I guess they’re looking for front fender extended coverage to protect toes, too? It’s a confusingly phrased OP, anyway, which explains the diverse replies.
Yes..to compensate for the short rear fender

i think I’ll just get a down tube version and zip tie it to the seat tube

Last edited by Germany_chris; 01-07-22 at 03:05 PM.
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Old 01-07-22, 03:21 PM
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Originally Posted by Germany_chris View Post
Yes..to compensate for the short rear fender

i think I’ll just get a down tube version and zip tie it to the seat tube
Yeah, I’ve never heard of such a piece to extend a short rear fender, so you could give a downtube mounted one a try, but I’d bet they’re going to be too wide and too long.

You could try to jimmy-rig something, but it might prove to be worthwhile juust getting a new fender set which provides more adequate coverage.
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Old 01-07-22, 03:25 PM
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Originally Posted by chaadster View Post
Yeah, I’ve never heard of such a piece to extend a short rear fender, so you could give a downtube mounted one a try, but I’d bet they’re going to be too wide and too long.

You could try to jimmy-rig something, but it might prove to be worthwhile juust getting a new fender set which provides more adequate coverage.
i have three sets of fenders in my garage that don’t fit the bike if I were to put any more fenders on there I’d just go aluminum but I like these
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Old 01-07-22, 04:53 PM
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Originally Posted by Germany_chris View Post
i have three sets of fenders in my garage that don’t fit the bike if I were to put any more fenders on there I’d just go aluminum but I like these
I can certainly understand that, and I’m sorry I don’t have any good ideas for you. Oh, you know what might work? Coroplast. You can trim and bend it, it’s very light, durable, and inexpensive. Maybe you could shape something out of that?
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Old 01-07-22, 05:38 PM
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I tried the strap on SKS fenders on my Stigmata and hated them. Only one ride and took them off.

If I ride when its raining or wet out I just pop an Ass Saver on my seat, maybe a Mudder Mini from the same company if I feel like it. Super light and it works perfectly fine for my needs. I don't ride with a group though.
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