Author Topic: Rear Mudguard question (2020 C5)  (Read 1498 times)

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ChrisR

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on: December 04, 2022, 02:02:13 pm
Hi all,

Just wondering whether there's a reason why the plastic (rear) mudguard extension finishes after the swing arm rather than before it (as on some other bikes I've had) I'm thinking of "modding" this. Has anyone done/thought the same? (Attached photo)
Past rides
Honda CB175, Suzuki GT550A, Triumph Bonneville T140V
MZ TS 250, Yamaha XS750, Norton Commando 850 Mk3A
Triumph Bonneville T140E, HD XL1200, BMW R1100R
BMW R1100RS, Honda Z (Monkey bike) 160cc tuned *
HD 1200 Sportster Sport *, HD 1450 Dyna, RE 500 C5 EFI
* current rides


Richard230

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Reply #1 on: December 04, 2022, 07:17:09 pm
On my stock 2011 Bullet the rear mudguard extends all the way below the swing arm pivot by a few inches. Maybe that plastic section of the steel rear Bullet mudguard could be made to fit on to a C5?
2018 16.6 kWh Zero S, 2009 BMW F650GS, 2020 KTM Duke 390, 2002 Yamaha FZ1


ChrisR

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Reply #2 on: December 04, 2022, 07:48:55 pm
Hi Richard230,

Thanks for the suggestion. I'll take a look!
What I was thinking was like so (photoshopped image attached) The (plastic bit of) mudguard ending before the swing arm. It'd then save on having dirt thrown onto the chain and as well the swing arm pivot points etc.,


Past rides
Honda CB175, Suzuki GT550A, Triumph Bonneville T140V
MZ TS 250, Yamaha XS750, Norton Commando 850 Mk3A
Triumph Bonneville T140E, HD XL1200, BMW R1100R
BMW R1100RS, Honda Z (Monkey bike) 160cc tuned *
HD 1200 Sportster Sport *, HD 1450 Dyna, RE 500 C5 EFI
* current rides


Richard230

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Reply #3 on: December 05, 2022, 01:39:00 am
Here are a couple of photos of the front section of the rear mudguard of my Bullet. This section is made of black plastic, while the rear section under the dual seat is steel. Unfortunately my photos are not very good as it was dark in my garage and my camera was not happy about the lack of light. I but you could visit Hitchcock's parts site to get a better feel for what it looks like, how it attached to the rear fender and how much it costs.
2018 16.6 kWh Zero S, 2009 BMW F650GS, 2020 KTM Duke 390, 2002 Yamaha FZ1


AzCal Retred

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Reply #4 on: December 05, 2022, 03:14:24 am
You can do a lot with plastic using a heat gun, some patience & gentle pressure. As long as there's not a "possible jamming with mud" issue it doesn't seem like it would cause a problem to move the shield to the inside of the swingarm loop.
A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


ChrisR

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Reply #5 on: December 05, 2022, 07:50:07 pm
Richard230,
Thank you very much for taking the time to take some photos. Greatly appreciated. It does look like your mudguard arrangement is the same as mine i.e it finishes just after the swing arm pivot point rather than before it.

AzCal Retred,
Yes. A heatgun I think would be perfect to mould the mudguard so it fits inside the swing arm loop. A little trimming will likely be required as well. I may also look at extending the bottom mount so it provides some support to the bottom of the guard if that's at all do-able.

Now that winter's starting to bite it's the perfect garage project. I'll update this thread with the outcome, once I've finished some other work I'm doing to the bike (Power commander & other bits) Thank you both for your help and pointers :-) 
Past rides
Honda CB175, Suzuki GT550A, Triumph Bonneville T140V
MZ TS 250, Yamaha XS750, Norton Commando 850 Mk3A
Triumph Bonneville T140E, HD XL1200, BMW R1100R
BMW R1100RS, Honda Z (Monkey bike) 160cc tuned *
HD 1200 Sportster Sport *, HD 1450 Dyna, RE 500 C5 EFI
* current rides


bthtony55?

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Reply #6 on: December 06, 2022, 07:03:19 pm
I have been looking at the same think on my 2017 classic 500. Also the chain guard finishes early and it should have been made to go down the back of the chain and cover the top of the chain like earlier models. The chain has a hard time running in road grit like the sprockets do. I may make a new guard in the spring to sort this out.
Unfortunately they changed the chain to run on the other side with the later efi engines or you could use the old original rear guard. I have used three of these on other bikes. They were all under £15 at the time delivered from India.


ChrisR

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Reply #7 on: December 07, 2022, 03:40:13 pm
bthTony55,

That's useful to know about thank you. I've recently been thinking about (possibly instead) keeping the existing plastic guard in situ, but fitting an inner rubber mudguard flap to it cut to suit, to protect the swing arm and surroundings a bit better. I've just noticed that the swing arm on my machine has four small holes in it (two either side of the arm) directly in the path of the water/debris coming off the wheel. Yikes.
Past rides
Honda CB175, Suzuki GT550A, Triumph Bonneville T140V
MZ TS 250, Yamaha XS750, Norton Commando 850 Mk3A
Triumph Bonneville T140E, HD XL1200, BMW R1100R
BMW R1100RS, Honda Z (Monkey bike) 160cc tuned *
HD 1200 Sportster Sport *, HD 1450 Dyna, RE 500 C5 EFI
* current rides


ChrisR

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Reply #8 on: December 08, 2022, 01:57:48 pm
Hi all,

After a little persuasion with a dremel, hacksaw and a blow torch (very carefully) -  I have a result. It could be prettier in places but at least it's less likely to now deposit debris all over the swing arm, pivots and chain.
Past rides
Honda CB175, Suzuki GT550A, Triumph Bonneville T140V
MZ TS 250, Yamaha XS750, Norton Commando 850 Mk3A
Triumph Bonneville T140E, HD XL1200, BMW R1100R
BMW R1100RS, Honda Z (Monkey bike) 160cc tuned *
HD 1200 Sportster Sport *, HD 1450 Dyna, RE 500 C5 EFI
* current rides


AzCal Retred

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Reply #9 on: December 09, 2022, 05:52:55 am
Looks like it'll do the job!   :)
A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


bthtony55?

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Reply #10 on: December 23, 2022, 11:26:04 am
That will protect the s/arm ok and a good mod. But the chain still gets all the crap off the tyre. The problem is the air filter and back of the air filter housing/tool box. I think a lot of fabrication in the spring.


ChrisR

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Reply #11 on: December 23, 2022, 12:37:01 pm
That will protect the s/arm ok and a good mod. But the chain still gets all the crap off the tyre. The problem is the air filter and back of the air filter housing/tool box. I think a lot of fabrication in the spring.

Yep! I've repurposed the airbox to house a power commander 5. The filters replaced with a K&N type on a Hitchcocks extension tube to the carb body. It would be nice to further protect the chain somehow. I used to have a MZ TS250/1 and that had a fully enclosed rear chain using flexible rubber "sleeves" Let me know what plans you come up with?
Past rides
Honda CB175, Suzuki GT550A, Triumph Bonneville T140V
MZ TS 250, Yamaha XS750, Norton Commando 850 Mk3A
Triumph Bonneville T140E, HD XL1200, BMW R1100R
BMW R1100RS, Honda Z (Monkey bike) 160cc tuned *
HD 1200 Sportster Sport *, HD 1450 Dyna, RE 500 C5 EFI
* current rides


bthtony55?

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Reply #12 on: December 26, 2022, 12:17:17 pm
I've had 9 MZ's over the year and you can't fault the rubber chain guards. It may be with a look at this method.