Lotus Elan

Bolt on 26R wheel dimension

PostPost by: Davidb » Sat Jan 16, 2016 4:50 pm

Can somebody give me the dimension-I think it is called "set-back" of bolt on 26R wheels?
This is found by placing a straight edge across the back of the rim and measuring down to the bolt/mounting surface of the wheel. Many thanks.
'65 S2 4844
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PostPost by: RogerFrench » Mon Jan 18, 2016 9:54 am

Bolt-on 26R? Pretty rare,surely?
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PostPost by: rgh0 » Mon Jan 18, 2016 10:28 am

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PostPost by: rgh0 » Mon Jan 18, 2016 10:31 am

Of course the original bolt on 26R wheels are rarer just like those original 26R Stromberg heads

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PostPost by: RogerFrench » Mon Jan 18, 2016 1:11 pm

rgh0 wrote:Of course the original bolt on 26R wheels are rarer just like those original 26R Stromberg heads

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Maybe the same car? 8)
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PostPost by: Davidb » Mon Jan 18, 2016 4:49 pm

A number of people on this site have said they use bolt on 26R wheels so I thought this was a simple request! :) I just bought some used bolt on Revolution wheels and I am trying to establish if the off-set is correct-if they are the same set-back/off-set as bolt on 26R wheels then I thought they must be-Yes?

Roger, how are things on TNF? :)

Edit: I just followed the link supplied by Rohan and was stunned at the price TT is asking for 26R wheels--six hundred and five quid! Each! Methinks that FIA regulations are costing people far too much.
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PostPost by: john1180 » Mon Jan 18, 2016 6:55 pm

Those are 7" magnesium, aluminum are much more reasonable!
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PostPost by: Davidb » Mon Jan 18, 2016 7:07 pm

Yes I noticed they were wider than 'normal'.
The racer guys are going to use magnesium though aren't they?-very expensive!

I suppose there isn't a huge market for these or somebody would be having them made in China--or maybe that is where they are being made anyway! (Am I too cynical?)

I am still looking for the original reason for this thread-the measurement of the offset of a bolt on 26R wheel... (yes I did a search) Can anyone help?
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PostPost by: CG901 » Mon Jan 18, 2016 8:06 pm

I would consider these. No relation to this company.
http://www.kelsport.net/parts/product_d ... ctionID=36
Current: 1965 S1.5 26/4004, 1966 S3 FHC 36/5192, 1958 Fiat Abarth 750GT Zagato, 1967 Brabham BT21B, 1988 Arrows A10B-04, 1991 Brun C91-001.
Past: 1971 Elan S4/SE DHC, 1972 Europa Special, 1980 Esprit Turbo, 1988 March 881-05, 1990 Leyton House CG90105
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PostPost by: bill308 » Tue Jan 19, 2016 2:05 pm

Hi DavidB and CG91.

Not bolt on but I have the Kelsport, alloy, ko version of this wheel for standard 5-pin ko hubs.

6" x 13 - Part Number - RACE26RRWA01

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PostPost by: Davidb » Tue Jan 19, 2016 4:22 pm

Bill, do you have one off the car that you could measure?
Thanks, David
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PostPost by: john1180 » Tue Jan 19, 2016 4:39 pm

Sorry for the thread wander. Bill are you using those with the 26r body or your stock car? Any pics?
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PostPost by: bill308 » Wed Jan 20, 2016 8:25 pm

Hi DavidB.

I measure 4-5/8 inches from the inner rim surface to the hub surface.

Hi John.

The plan is to use these wheels on the 26r project. I'm pretty sure they won't fit under the stock s2 body work. I'll post some pics after my camera charges up.

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PostPost by: bill308 » Wed Jan 20, 2016 10:29 pm

Here are some photos showing the wheels and measurement.
Attachments
dsc01211w.jpg and
Street side view
dsc01209w.jpg and
Rim profile
dsc01207w.jpg and
Car side view of the wheel, note 5- drive peg holes
dsc01206w.jpg and
Hub face to Inner rim, ring
dsc01205w.jpg and
Measurement is 4-5/8 inches
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PostPost by: CG901 » Wed Jan 20, 2016 11:13 pm

It appears that the KO and bolt-on are identical with the exception of the 4 bolt holes. I wonder if you could use the bolt-on on a knock off hub? Can't see the machining as the label is covering on the Kelsport site.
Current: 1965 S1.5 26/4004, 1966 S3 FHC 36/5192, 1958 Fiat Abarth 750GT Zagato, 1967 Brabham BT21B, 1988 Arrows A10B-04, 1991 Brun C91-001.
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