•Carbon crank arms with separate alloy spider
•Chain ring sizes ranging from 30 to 38 tooth – we requested and received a climbing friendly 30t ring.
• Weights (real): crank arms (with spider and axle) 541g, 30t chain ring 53g (+7g for the bolts), PF92 bottom bracket 92g
•Type2 technology with Cage Lock and Roller Bearing Clutch mechanism
• Weight (real): 253g
•SRAM 1X X-Actuation 11-speed MatchMaker-X compatibel
•Weight (real): 110g (+7g for the separate clamp)
•Weight (real): 263g
• Specific 1×11 chain
• Includes 11-speed chain lock (officially only one-time use)
• Weight (real): 261g (114 links)
All in all the differences between the super high end XX1 and SRAM X01 group set are rather small. The only thing we see as potentially affecting performance out of the box is the difference in spider design which allows more compatibility with existing drive trains, but limits the chain ring size to 30t minimum. For most people, unless you really need those super low climbing gears, this should not make much difference.
When it comes to comparing the weight between the groups, there surely is a small difference. For the cranks, which we have in identical 30t configuration – the difference is as low as 38 g – which seems to come primarily from the differences in the XX1 spider’s machining. I didn’t weigh every component of the XX1, but given those minimal differences I’d be surprised if together the minor increase of the X01 really would make a difference.
PRICING : I deliberately didn’t state prices as they differ greatly between markets, but pricing of the X01 is something that needs to be addressed. From what I know, the differences in aftermarket pricing of XX1 and X01, are just as slim as the differences in features, so the question of where to place X01 really is justified. After all if aftermarket prices, weights and features are near identical, where is the market for X01 after all?
Well I think the key to the answer is within the OE market. Looking at identical complete bikes with XX1 and X01 group sets – the supposedly “less exclusive” X01 bike actually saves considerable money over XX1 bike. Could it be X01 is really more of an aftermarket product, If it were, it wouldn’t make 1×11 that much more accessible as an aftermarket upgrade, but it would help bringing the same 1×11 shifting performance down to the slightly lower levels? Which at least is a step in the right direction . (Of course time may prove that street pricing may differ greatly, making this consideration obsolete . Anyhow, we are happy to have a set of the 2014 SRAM X01 drive train for a long term review and will let you know our findings in daily use in due time.