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Mar 11th, 2023
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Joined: Dec 2018
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OP
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Joined: Dec 2018
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Hi all, transplant from the BSA forum here!
I have a B441 (ish) and am trying to get a speedo that 1) I like 2) Works 3) Wont break the bank
I have tried a Repro from a classic bike company (which says it fine for a B44 ..... it isnt) but frankly the thing is useless and over reads like mad. Specs on the "revs per mile" do not seem to be available.
Came across this :- "RS Vintage Parts EBY0169 Triumph T20 Cub Speedometer Replica - 80421/19/2 Speedo - 60Mm - & Tested" on Amazon,
I like the look, and size, and its range would be fine for how the bike is set up, but am faced with the same issue of what is its Rev / Mile,( or indeed what is the Rev / Mile of the item it is a replica of!)
Anyone had experience of this unit?
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Joined: Jul 2012
Posts: 2,162 Likes: 47
Britbike forum member
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Britbike forum member
Joined: Jul 2012
Posts: 2,162 Likes: 47 |
Cubs use a 2:1 speedo gearbox/ drive
I’d be tempted to get a used original, or an electronic one.
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Joined: Dec 2018
Posts: 318 Likes: 62
Britbike forum member
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OP
Britbike forum member
Joined: Dec 2018
Posts: 318 Likes: 62 |
Hmmm ..... interesting. I have a 2:1 drive fitted.
Shame Cubs use a 17inch wheel. My bike has 18inch so it would under read a tad, but better than the mechanical one I haver which is a good 25% out.
Electronic .... got one .... takes AGES to initialize, like a minute or longer.
At $21us it is probably worth a punt!
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Joined: Nov 2002
Posts: 962 Likes: 27
Britbike forum member
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Britbike forum member
Joined: Nov 2002
Posts: 962 Likes: 27 |
That one shouldn't be too far out. If you get a used one, make sure it has 1600 on the face to match your drive.
1958 5TA / T100
1967 T120R
1969 TR6C
1970 TR6C
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Joined: Oct 2014
Posts: 197 Likes: 41
Life member
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Life member
Joined: Oct 2014
Posts: 197 Likes: 41 |
You might want to check with Andy Henderson at Vintage British Cables. He seems to have excellent information. http://vintagebritishcables.com/
Current Bike: 1968 Triumph Bonneville T120R, 1969 BSA Victor Special, 1975 Norton 850 Commando John Player, M1030M1 U.S.M.C. Diesel
Previous British Bikes: 1968 BSA Lightning, 1969 BSA Lightning, 1969 BSA Firebird Scrambler, 1972 BSA B50 Gold Star, 1974 Triumph Trident
Previous Non-British Bikes: 1983 BMW R80RT
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Joined: Jul 2012
Posts: 2,162 Likes: 47
Britbike forum member
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Britbike forum member
Joined: Jul 2012
Posts: 2,162 Likes: 47 |
18” cubs had d175 drives (2:1)
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Joined: Aug 2001
Posts: 2,296 Likes: 172
Britbike forum member
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Britbike forum member
Joined: Aug 2001
Posts: 2,296 Likes: 172 |
The $21 version is undoubtedly an Indian version, it is advertised on other sites as being 2:1 so no problem there probably. But being Indian, it will be designed to fit in a deep headlight, and (based on other folks' experiences) will not fit in any holder besides that. Bears considering...
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