Author Topic: XBR replacement tank  (Read 2576 times)

mthee

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Re: XBR replacement tank
« Reply #15 on: January 18, 2019, 11:51:36 AM »
And at those attractive prices, one is even painted for you!

Here are some measurements I took from my XBR tank for reference;

Max length 640
Centre (front mounting) cups to centre rear mount hole 527
Centre cups to centre pet******* 230
Centre cups to rear of toptube where frame rails attach (and width goes from 65 to 75) 200
Centre cups to start of max width of 160 (outside seat rails) 360
Width of tunnel between cups 110
Diameter of top tube 65mm (CB200 cups had to be trimmed to gain clearance)
Height from cup centres to top of toptube 75
Max width 310

Worth reposting here what was included incidentally to my posted appeal for a CB250RS brake plate;

Joolz has a CX500 tank fitted and says it's an easy mod, needing only longer rubber mounts up front, or washers under the originals and a trim of the rear mounting tab. However, you then have to match the seat to the new tank face and you'll have lost the side panel mount that the XBR tank provides.

Here's a CB400N tank being used (same as 250N) but the builder doesn't describe how he did it, other than to say it needed a "soft" frame modification, which might mean no welding.
http://www.bikebound.com/2018/08/07/honda-xbr500-cafe-racer/

GN250 tank here;
http://rhcc.pl/ajs-trial-replica/

I nearly got my hands on a CB650 tank which looked like it might have nearly gone straight on.  The CB750/900 tank is longer.
The SR500 tank also looked good, apart from tunnel widening and the gap left where the oil filler cap on the SR frame top tube is located by the headstock.

The GS400/425 was also good looking on measurements supplied by eBay sellers, having a 160mm tunnel to the rear of the tank which will clear the frame rails, but the pet******* might need repositioning and seat and side panel considerations remain. Also front mounting posts on the XBR will need cutting right down and the cups on the GS tank trimming to allow the tank to clear the XBR top tube.
« Last Edit: April 09, 2019, 02:13:24 PM by mthee »

tommy

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Re: XBR replacement tank
« Reply #16 on: January 18, 2019, 11:11:29 PM »
good site that  tony

Rossco500

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Re: XBR replacement tank
« Reply #17 on: January 18, 2019, 11:26:30 PM »
Thanks for that - plenty of information. I've seen one fitted with a Honda 400/4 tank (I think) and it looked well. Not sure what modifications were needed though and they probably aren't cheap now with the current demand for 400/4 parts.

Regards

Tony   

mthee

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Re: XBR replacement tank
« Reply #18 on: January 19, 2019, 12:01:07 PM »
Here's one with that tank on;


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xbally

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Re: XBR replacement tank
« Reply #19 on: January 19, 2019, 02:16:50 PM »
Here's one with that tank on;
Nice!
CB250RSA  CBR600  XBR500  ROYAL ENFIELD INTERCEPTOR 650

mthee

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Re: XBR replacement tank
« Reply #20 on: January 19, 2019, 02:46:00 PM »

Moto63

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Re: XBR replacement tank
« Reply #21 on: January 19, 2019, 03:39:53 PM »
Ha ha ha ha ha ha ha ha ha..... no please stop it, my broken ribs still hurt when I laugh to much. Ha ha ha ha🤣🤣🤣🤣. £1100 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

mthee

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Re: XBR replacement tank
« Reply #22 on: January 19, 2019, 03:57:52 PM »
Won't be showing you any of my welds on the tank front mounts, then  ;D

xbally

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Re: XBR replacement tank
« Reply #23 on: January 19, 2019, 04:53:06 PM »
Well it does say he may be open to offers and postage varies. I've owned 3 400/4s over the years (2 blue and one in red). Sold the last one about 5 years ago. Got it cheap as it had been standing and it turned out the rings had stuck in the bore over time. Cost an arm and a leg to have the 4 pots rebored with piston kits etc and gaskets to add insult to injury. Then the carbs got all messed up with ethanol so they needed stripping and rubbers replaced,then it need new coils and the list went on and on. Did eventually get it running well but then it needed a cosmetic resto but i'd had enough by then!
CB250RSA  CBR600  XBR500  ROYAL ENFIELD INTERCEPTOR 650

JOOLZ

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Re: XBR replacement tank
« Reply #24 on: January 23, 2019, 02:47:15 PM »
A few different tanks cb400 and xj650, the AJS Cadwell tank also fits

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« Last Edit: January 23, 2019, 02:59:30 PM by JOOLZ »

mthee

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Re: XBR replacement tank
« Reply #25 on: January 24, 2019, 09:57:00 PM »
Love that CB400 tank!

Rossco500

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Re: XBR replacement tank
« Reply #26 on: January 24, 2019, 11:49:26 PM »
Very useful seeing how some of these tanks look. Interesting to hear about the Cadwell tank too Joolz. Worth keeping an eye out for a used one. I think they hold around 11 litres. Link to the AJS Cadwell parts prices :-

https://www.ajs-shop.co.uk/acatalog/CADWELL-Parts---Accessories.html

Regards

Tony

mthee

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Re: XBR replacement tank
« Reply #27 on: February 01, 2019, 05:55:04 PM »
Received the pet******* from eBay lathe engineer, made up for £18   :) Took it to the local shop, where matey TIG welded it on no probs, but really struggled with filling the old pet******* holes because he said the tank was Swiss cheese. He built up a big weld using his MIG and said although I'd need to use a liner, to test it first and return it if it leaked so he could go over it again. Got it home and it leaked from the sides of the weld, maybe at it's base  :'(
Does this mean the tank metal is too porous/rusty? Lost cause? Michael?

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« Last Edit: February 01, 2019, 09:58:11 PM by mthee »

Moto63

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Re: XBR replacement tank
« Reply #28 on: February 01, 2019, 10:51:53 PM »
Evening Matt. Yes quite possibly. The tank that Tim (timbo) very kindly let me have for just the postage costs to practice on turned out to be like that. Wafer thin and an absolute nightmare to tig weld anything to it. Like I say Tim had told me that it was pretty much knackered but was worse than I'd expected. So in answer to your question, yes if the metal is wafer thin then yes most likely become porous. 😢😢. Best o luck with it. Cheers, Michael

mthee

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Re: XBR replacement tank
« Reply #29 on: February 01, 2019, 11:38:13 PM »
Would POR15 liner be enough to sort  it?