These are probably the best and most endorsed-through-use trials cranks on the present market. They have virtually no flex at all in them so they feel great and provide control when resting on the bashring. The bashring is integrated but can be removed using a chain whip and is held on with the whole spider using a very neat screw on bolt. The bash gaurd is about 10mm thick (one of the widest on the market) and has good grip on all surfaces (though yet to be used on mossy rocks!) The bash ring is available in red,black,blue,silver and gold. The tapered version costs £140 but the splined version is £180. I would seriously recommend the investment as these cranks are VERY good. They are also supplied with the bolts and a 22 tooth chainring.