Shimano HG70 7 Speed Cassette Features: High quality 7-speed cassette Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a... more
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Shimano HG70 7 Speed Cassette Features: High quality 7-speed cassette Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load Close ratio gearing allows a more efficient use of energy through finer cadence control Sprockets are cut away to reduce weight without reducing rigidity Pearl-bright finish offers hard wearing resistance to corrosion Pearl-bright steel cassette lockring For Narrow 7-speed HG chains
Advantages: Top of the range "bling" rear mech Disadvantages: 9 speed "only", superceeded by RD-7800 10-speed version
..., the Shimano instructions are very simple to follow, although as with all jobs of this type a basic knowledge of bicycle maintenace is required.
It's a beautifully made item, with lots of cold-forged, anodized aluminum giving the mech a "jewellery" look (in my opinion, better looking than the new 10-speed version) and has so far always shifted faultlessly with 105 STI levers.
Mine is the "SS" version, with the short cage, although a longer cage version is (was?) also available to work with wider range rear cassette sprockets, or a triple/compact chainset - this "GS" version has a total capacity of 38 teeth. Clearly, this will be a little heavier than this version...
Looking at ChainReactionCycles.com today (April 7, 2006), it's available at £49.99, saving 23% off the RRP of £64.95, so pick up a bargain...
Overall, a top of the range mech, well...
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Advantages: Excellent bike with well Specified Equipment Disadvantages: No fun riding in the rain.
...If you are considering purchasing a new bike and are
not sure which to choose I can recommend the C.B. Urban 300.It is a cross between a road bike and a mountain bike.
Having an aluminium frame it is light and easy to ride
(Make sure you get the correct size frame)
The Shimano gears I have found to be excellent,the
brakes are very good to.
I chose this particular model over the Urban 100 & 200
due to the better specification of parts and the front
suspension which enhances both comfort on road and offroad.
It is ideal for treking on trails or country pathways.
TECHNICAL INFORMATION.
Brake Levers: Shimano S.T.I
Brakes: Forge V Alloy
Chain: Z9000
Chainset: Shimano C 203
Number of Gears 24
Frame / Colour: Taper tube alloy
Frame sizes: 18,20,22
Freewheel: Shimano 8 speedcassette
Gear Levers: Shimano S.T.I
Gears Front...
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This product has not yet been reviewed. 
07.04.2006
24.09.2003
05.07.2005
