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my fender dilema

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Old 02-17-09, 06:12 PM
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huerro
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my fender dilema

Apologies if this has been done, but search is buggered again.

I just got some Freddy Fenders for my commuter* and my 700x25 zaffiros are just rubbing at the brake calipers. I like the 700x25s and a new set of tires would cost the same as the fenders did.

Has anybody butchered Freddy Fenders for caliper clearance? How did it work?

Should I just go ahead and get 700x23s?



*the bike is a Trek 420 and it's design is a mystery to me. It has fender eyelets front and rear and rack eyelets on the back, but no rack bosses on the seat stays and the brake bridge and crown are too low to fit the fenders with anything other than a 23mm tire. Grrr.
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Old 02-17-09, 06:20 PM
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I butchered sks fenders for a bike with a similar problem. basically cut them into pieces using a hot xacto knife, then made a bridge to cross above the brake bridge out of aluminum stock from the hardware store, used a layer of innertube to protect the frame. For the front, the fender just extends backwards from the fork crown. the frontwards piece was mounted to a front rack platform i no longer use...

it looks decent enough, and the fenders work really well- but it bugs me. I am going to convert the bike to 650b, since I can run larger tires, and full honjo fenders. This is a particularly classy vintage lightweight lugged rando-bike, so its worth it to me. But for a more purely utilitarian situation, 'splitting' the fenders can work well.
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Old 02-17-09, 08:32 PM
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Thanks. did you just drill the fender and bolt on the bridge?
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Old 02-18-09, 07:51 AM
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I didn't know what a 420 was,so I Googled it and found this:
http://www.cyclofiend.com/cc/2006/cc...icnye0706.html


Is that close to your model? He's running some skinny SKS's on there with 1 1/4" tires;PB also makes 'road' width Hardcore fenders that are pretty skinny. Which fenders are you using? You should be able to cut reliefs in the edges of the fenders where they pass through the calipers,then drop the wheels and slide the fenders up in to mount them. Also looks like this guy mounted his rack to the brake mount. Axiom makes racks like this for CF/road frames. There was also a recent thread about seatpost collars with rack mounts on them.
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Old 02-18-09, 08:05 AM
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the freddy fenders are made from polycarbonate. they melt at 130C, or about 265F
you can reshape them at that temperature.
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Old 02-18-09, 08:59 AM
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Originally Posted by huerro View Post
Thanks. did you just drill the fender and bolt on the bridge?
exactly, cut them, drilled two tiny holes, used two tiny machine screws with stopnuts.
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Old 02-18-09, 10:13 AM
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Originally Posted by positron View Post
I butchered sks fenders for a bike with a similar problem. basically cut them into pieces using a hot xacto knife, then made a bridge to cross above the brake bridge out of aluminum stock from the hardware store, used a layer of innertube to protect the frame. For the front, the fender just extends backwards from the fork crown. the frontwards piece was mounted to a front rack platform i no longer use...

it looks decent enough, and the fenders work really well- but it bugs me. I am going to convert the bike to 650b, since I can run larger tires, and full honjo fenders. This is a particularly classy vintage lightweight lugged rando-bike, so its worth it to me. But for a more purely utilitarian situation, 'splitting' the fenders can work well.
Got any PICS?
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Old 02-18-09, 10:15 AM
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River City Cycles in Portland splits them all the time with some proprietary hardware that I am not sure if they sell or not... (They used to sell it for about $20)
Here are some great pics... http://www.rivercitybicycles.com/mod...105&page_id=58

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Old 02-18-09, 10:17 AM
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I have chopped mine at the front and zip tied it to meet the fork crown from behind (I don't run them rear round). There is no fender coming out the front of the fork. For the rear, I simply run it over the top of the cantilever brake and zip tie the mother down. Works for me.
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Old 02-18-09, 10:21 AM
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Originally Posted by AEO View Post
the freddy fenders are made from polycarbonate. they melt at 130C, or about 265F
you can reshape them at that temperature.
Dang!!! Wish I had thought of that before I bent mine into oblivion (ugly, but still serviceable).
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Old 02-18-09, 10:33 AM
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When the Zefal front fender on my Torelli shattered from a picked up stick, my LBS gave me a Freddie fender. I cut it just in front of the "L" mount & installed the back half normally. I drilled a couple holes in the front piece & zip tied it in place below the brake caliper. No problems for several thousand miles. This is the only pic I have handy.
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Old 02-18-09, 10:43 AM
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Originally Posted by ollo_ollo View Post
When the Zefal front fender on my Torelli shattered from a picked up stick, my LBS gave me a Freddie fender. I cut it just in front of the "L" mount & installed the back half normally. I drilled a couple holes in the front piece & zip tied it in place below the brake caliper. No problems for several thousand miles. This is the only pic I have handy.
Interesting...how did you support the weight of the front portion of the zip-tied part (not sure if that makes sense)? How did you keep the front peice from drooping toward the tire?
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Old 02-18-09, 12:58 PM
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Originally Posted by dynaryder View Post
I didn't know what a 420 was,so I Googled it and found this:

Is that close to your model? He's running some skinny SKS's on there with 1 1/4" tires;PB also makes 'road' width Hardcore fenders that are pretty skinny. Which fenders are you using? You should be able to cut reliefs in the edges of the fenders where they pass through the calipers,then drop the wheels and slide the fenders up in to mount them. Also looks like this guy mounted his rack to the brake mount. Axiom makes racks like this for CF/road frames. There was also a recent thread about seatpost collars with rack mounts on them.
Mine's nowhere near as nice as that. Sadly, it's this guy (although the specs are wrong there): http://www.bikepedia.com/QuickBike/B...=420&Type=bike

I connected the rack to the seatpost binder which seems to work fine. It's just a silly design though.

I'm running the narrowest freddy's and the width isn't the problem, it's that the distance from the brake bridge and fork crown to the hub is too small. I would actually need to cut out the center of the fenders so that I can raise them a few mm. I'll probably just end up splitting them and doing the bridge. Thanks for that link Sawtooth.

I'll post some pics of my solution. Had to drop the puppy at the groomers today so I took the car in anyway.
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Old 02-18-09, 10:38 PM
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"How did you keep the front peice from drooping toward the tire?"

Apparently there isn't enough weight for it to droop, or possibly the zip holds the fender piece tightly enough to the bottom of the brake caliper that it cannot droop. It sometimes gets slightly out of line with the tire but is easy enough to adjust right back. I will get a close-up picture & post it soon. Don
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Old 02-19-09, 01:58 PM
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Originally Posted by Sawtooth View Post
River City Cycles in Portland splits them all the time with some proprietary hardware that I am not sure if they sell or not... (They used to sell it for about $20)
Here are some great pics... http://www.rivercitybicycles.com/mod...105&page_id=58
These brackets are nothing more than the brackets used for rear racks. Go to a few LBS' and ask if they have any extras in their bins. Take a pair of pliers and a vise to em and wal'la.
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Old 02-19-09, 02:25 PM
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Originally Posted by Silverexpress View Post
These brackets are nothing more than the brackets used for rear racks. Go to a few LBS' and ask if they have any extras in their bins. Take a pair of pliers and a vise to em and wal'la.
Yeah, I don't have any PICS, but that is the exact solution i came up with... (see the aforementioned link) I made mine with a piece of alu stock, hacksaw and a drill, and they are much lower profile (and more elegant) than the ones in the link pics. Exactly the same idea though.

incidently, if i want to post a pic, i have to host it somewhere, correct? then what do i do?
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Old 02-19-09, 03:30 PM
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Originally Posted by positron View Post
Yeah, I don't have any PICS, but that is the exact solution i came up with... (see the aforementioned link) I made mine with a piece of alu stock, hacksaw and a drill, and they are much lower profile (and more elegant) than the ones in the link pics. Exactly the same idea though.

incidently, if i want to post a pic, i have to host it somewhere, correct? then what do i do?
Do a reply with qoute to this post of mine, and when the "Message" box appears scroll down to "Manage Attachments". There is a limit to the size of any attachment, so if you need to go to this site and resize your pics before you post them...

http://www.picresize.com/
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Old 02-20-09, 04:36 PM
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A little surgery with the dremel and a hacksaw seems to have solved the problem nicely. No extra hardware needed. The hole in the back is a little bigger than it needed to be, but the front is just about perfect.


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Old 02-20-09, 10:42 PM
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Sorry I'm late with the promised pics, I sold our old washer/dryer and my old table saw on Craigs list today & got sidetracked loading everyone up & getting them out of here. Here are the pics of my cut & zip tied fender. Harder than I thought to take a picture of black zip tie on black fender! I hope these help & encourage anyone else to try this simple solution. The rear half sits above the bottom of the fork crown & the front piece is tight against bottom of brake caliper. Don
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