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Title: Bertone X1/9 Speedline Phone Dials wheels on Beta Coupe Post by: Lancia12 on December 20, 2016, 02:24:03 AM Does anyone know if '87-'88 Bertone X1/9 Speedline "Phone Dial" wheels (see photo) will fit a '75-'76 Beta Coupe?
Speedline Wheel Specs Are: 4x98 13"x5.5" 102mm backspace If so, are spacers needed? Any photos? Thanks Jason Title: Re: Bertone X1/9 Speedline Phone Dials wheels on Beta Coupe Post by: HFStuart on December 20, 2016, 12:13:18 PM 4x98 is correct
13x5.5 - 1" smaller than standard beta wheels but shouldn't be a problem provided they clear the calipers 102mm backspace - rather than the backspace you need to measure the offset - it should be stamped on the rim as ET40 or similar. Betas were ET34 so if those wheels are ET40 you'd need a 5 or 6mm spacer. In fact you could probably get away with using two or the standard spacers. Title: Re: Bertone X1/9 Speedline Phone Dials wheels on Beta Coupe Post by: rachaeljf on December 21, 2016, 07:33:05 PM Having done this swap in the other direction, I don't believe they will fit over the brake callipers. As for offset, they will stick out about 15mm more than Beta wheels. I calculate the ET to be 22mm for the X1/9 wheels.
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