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Middleburn RS8 X-Type Duo Spider 104/64mm BCD

Customer Reviews (1)
5 / 5| Write your review
£70.40 Please note this product has selling restrictions to your country. was
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SJS Cycles part number : 
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Product Reviews (1)
Questions & Answers (1) Q & A
This spider is for a two ring set up. For the X-Type crank Middleburn changed the Duo spider design from a 3 Arm spider/ring to a 4 Arm spider only, this was to make the spider stiffer for the demands of racing

All Middleburn spiders are machined from 7075 T6 aerospace aluminium for maximum strength, this spider is designed to work with the RS8 X-Type cranks only. The ring ratios Middleburn recommend for quickest shifting are 22T/36T, 24T/38T, 26T/39T or 28T /42T.

Chain line is 47.5mm whilst the weight of the spider is 59g.

Available in Black, Silver, Red & Blue.
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Product Reviews (1)
Overall Product Rating 5 / 5
Good Product, But Ripped Off
17 Sep 2016
5 / 5
ConsA sham of a company
ProsGreat Product
They have taken advantage of Middleburn's demise to capitalise on the lack of availability.

I needed this part, but WILL NEVER use SJS again
Questions & Answers (1)
Is This Spider Compatible With Rs7 Square Taper Cranks?
09 May 2015
And about the pictures, the spider shown seems to be for 3 ring set up, the 104mm BCD arms visibly will receive rings on either side.

SJS Customer Service:

This spider will not be compatible with the square taper cranks as it will give a chainline that is way off. The correct square taper equivalent is SJSC part 33726.