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hatyszysta
Joined: 13 Jan 2014 Posts: 18 Location: Poland
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Posted: Fri Mar 15, 2019 11:36 pm Post subject: db4 rear fairing mount |
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Hi!
I'm during the process of restoring my bike to original shape.
I have a problem with rear fairing mount. It was lost. I can't find any pics or manuals how this fairing is mounted to rear frame. Can you take me some photos undertail and under the drivers sear? Thanks!
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2bims
Joined: 03 Apr 2010 Posts: 7289
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Posted: Fri Mar 15, 2019 11:57 pm Post subject: |
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If its a single seater tricolor...there is no support behind the riders seat...later...due to vibrations causing cracks a rear extra subframe was added...have you not got the exploded spare parts manual> this shows how things go together
Do you have Part Number 12 on here? the rear subframe made of box section aluminium?
https://www.sfogliami.it/flip.asp?sc=slstfg3j0y7ocyjx1xq5yks9yob8qd6a&ID=117564#page/28 |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Sat Mar 16, 2019 10:28 am Post subject: |
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_________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Sat Mar 16, 2019 10:28 am Post subject: |
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_________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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vort28-2
Joined: 13 Mar 2019 Posts: 10
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Posted: Sat Mar 16, 2019 12:14 pm Post subject: |
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Sorry 2bims/Brian , but as a newbie I will have to correct you on that.
The early tricolor indeed just had the alloy frame and bobbins for the seat unit to sit on but due to the tail unit vibration and cracking a metal hoop was made that replaced the spacer bobbins and added an extra fixing .
They are pretty rare though , buy I'm sure your DB4 2bims has one.
I'll look for a picture. |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Sat Mar 16, 2019 1:24 pm Post subject: |
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vort28-2 wrote: |
Sorry 2bims/Brian , but as a newbie I will have to correct you on that.
The early tricolor indeed just had the alloy frame and bobbins for the seat unit to sit on but due to the tail unit vibration and cracking a metal hoop was made that replaced the spacer bobbins and added an extra fixing .
They are pretty rare though , buy I'm sure your DB4 2bims has one.
I'll look for a picture. |
I've never seen the extra metal hoop. Was it only on the later 2 seater models? _________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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polyesterpig
Joined: 30 Jan 2011 Posts: 76 Location: California USA
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Posted: Mon Apr 01, 2019 6:02 am Post subject: |
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Yes there was a steel loop added for support for the single seater. The two seater has a different subframe. You can see the single seater subframe on raresportbikes.com. Half way down.
https://raresportbikesforsale.com/featured-listing-2000-bimota-db4-with-performance-kit/ _________________ 2002 Cannondale E440
2003 Cannondale Super Mono 440
(3) 2003 Cannondale E440R
2010 Ducati Hypermotard evo SP
2000 Bimota DB4ie BiPosto |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Mon Apr 01, 2019 10:41 am Post subject: |
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I have 2 x DB4's and neither of them has this extra loop. _________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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vort28
Joined: 22 Mar 2010 Posts: 2194 Location: Northwest , UK
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Posted: Tue Apr 02, 2019 9:05 am Post subject: |
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They a pretty rare I think. Only seen it on one bike before. Think its the late tricolors only, or was it just that after Bimota went bump in 2000 they found a box of bits that seemed to fit so they put them on ??? Who knows !! |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Tue Apr 02, 2019 10:07 am Post subject: |
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Yeah you're probably right Stu. I'll have to keep an eye out for one of these super rare Bims now _________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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2bims
Joined: 03 Apr 2010 Posts: 7289
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Posted: Tue Apr 02, 2019 11:49 am Post subject: |
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vort28-2 wrote: |
Sorry 2bims/Brian , but as a newbie I will have to correct you on that.
The early tricolor indeed just had the alloy frame and bobbins for the seat unit to sit on but due to the tail unit vibration and cracking a metal hoop was made that replaced the spacer bobbins and added an extra fixing .
They are pretty rare though , buy I'm sure your DB4 2bims has one.
I'll look for a picture. |
Nah.....mine just has the same as Brians "new one".....I still recall when my rear brake master locked up and "slowed" my progress on the motorway...rear disc was glowing red by now...managed to scramble off the motorway onto a side road and then it got hotter due to no wind resistance and I was still 5 ft from the kerb.....a car pulled over and some 3 fellows tried to assist me in getting the bike to the pavement....and they were reaching under the "bump" on the back to lift the back wheel off the ground to push the bike..."Nnnooooooooo…" I screamed....as theres nothing under there...just pure fibreglass of the one piece seat/tank unit....Luckily they stopped and then lifted the back wheel and pushed....after which I waited some time for it to cool down and limp home....I've seen the "extension piece"....but not sure if it was only for the twin seat....the single seaters could sort of do with one...as the back end does jiggle about a bit with vibes etc when on the go...but...I havent evidenced any cracks or breaks as yet as a result...If it aint "too broke"...dont fix it |
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vort28
Joined: 22 Mar 2010 Posts: 2194 Location: Northwest , UK
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Posted: Tue Apr 02, 2019 12:26 pm Post subject: |
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2bims wrote: |
...I've seen the "extension piece"....but not sure if it was only for the twin seat... |
Nah, different sub frame on the twin seaters . |
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brian
Joined: 22 Aug 2011 Posts: 3769 Location: Australia
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Posted: Tue Apr 02, 2019 1:59 pm Post subject: |
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vort28 wrote: |
2bims wrote: |
...I've seen the "extension piece"....but not sure if it was only for the twin seat... |
Nah, different sub frame on the twin seaters . |
Could always put a steel subframe off the DB3 on I guess _________________ '99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851 |
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