The tapered alloy steerer is the stiffest option. Both alloy crown models are available with either standard 1 1/8in or tapered steerers. The new naming system breaks SID down into four basic chassis options: 80/100mm (unchanged for 2011) with alloy crown/steerer 80/100mm with World Cup carbon crown/steerer new 100/120mm with alloy crown/steerer 100/120mm with tapered World Cup carbon crown/steerer. The lower legs of the SID 120 feature scalloped Power Bulges for the lightest possible weight The lower legs of the sid 120 feature new, scalloped power bulges for the lightest possible weight.: the lower legs of the sid 120 feature new, scalloped power bulges for the lightest possible weight. Rotor size is limited to 185mm on all SID models. Internally, RockShox have gone so far as to drill holes in the bushings to save grams. The upper tube walls have been thinned and the World Cup version is only offered with a tapered carbon steerer, which shaves 100g compared to the standard 1-1/8in version. All possible material has been shaved from the Power Bulge bushing supports on the magnesium lowers, which also sport a clean bolt-on cable guide. Internally, SID still uses RockShox’s Motion Control damper – which has been proven in the longer-travel Reba and Revelation – and the Dual Air spring, which gives the rider control over positive and negative air pressure.Īlthough the new fork is stronger, RockShox engineers worked to keep weight to an absolute minimum. The bump up in travel required a heavy redesign of the fork’s structure. The new 120mm-travel version (travel can be reduced to 100mm) is considerably different to the original 80/100mm model, which remains in the line with an unchanged chassis. L-R: SID 100/120mm World Cup (1,365g), SID 80/100mm World Cup (1,345g) – both in Keronite Grey – and SID 100/120mm with 15mm through-axle (1,590g)īecause the additional travel required a proportionate increase in chassis strength and stiffness, engineers decided to split the SID line in two. New sids bookend the carried over 80/100mm world cup version pictured center.: new sids bookend the carried over 80/100mm world cup version pictured center.
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