ANSWER Rove AM Stem

star - A giant ball of plasma held together by gravity.

weight - A measure of the force applied on an object by gravity. Measured metric in grams and kilos or imperial in lbs and oz

40mm - The equivilent of 4cm

Components - Multiple items used to complete the product.

Chain Reaction Cycles offers a great collection of cycling gear right from everyday bikes and special makes intended for use on rough terrain or races, to knee guards, shoes and cycling outfits, including an exhaustive list of components and spare parts, brakes, drive trains, frames and forks, wheels and tyres, and protective gear. The buyer would just be spoilt for choice under most scenarios. This is the most appropriate location for cycling enthusiasts of all types; casual, health-conscious, adventurous or even the professional racers. The site stocks gear from reputed brands and guarantees a 5 per cent price drop in the price everyday as long as the stocks last. Online shopping facility is available at the site, with free delivery and money-back options. CRC also offers periodic clearance sale offers with good enough discount margins. Those training or participating in Triathlon events will find CRC particularly helpful as the site offers choicest and unique accessories appropriate for each stage of the event, swimming, running and cycling, with nutritional and training supplements also being part of the product line.