Posted 20 hours ago

SHIMANO FC-RX600 GRX chainset 46/30, double, 11-speed, 2 piece design

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Place the spacer (if required) on the drive side of your crank, this has the effect of pushing the crank rings out slightly and thus allowing proper adjustment on the lower limit on the FD Fitting the 46/30T Graff for this test in place of a 52/36T made a world of difference, even though I threw on a larger cassette (11-28T) at the same time. The 30T inner is basically the granny ring from a triple, and finally let me clear a hideous 30-minute test climb that starts with a 500ft, 0.8-mile, 11 per cent nightmare that at times reaches over 23 per cent gradient. I can't do it on a semi-compact without stopping halfway to think about my life choices and not exploding. The 30x28 combo lets you ride down to around 4mph without stalling. Triples have fallen out of favour thanks to the marketing bods, mainly thanks to SRAM. The 1x trend (which really means having to buy a stupidly expensive cassette only to find you still don't have a tall enough top end or low enough bottom end) has only made triples seem even less 'cool'. But I used to spend 95% of my time in the 39T and never found a third chainring to be a problem and I couldn't GAF about being thought of as 'cool'. It's time to kill the macho bullshit chainring thing and just fit what works for the riding you do. First, you need to remove your crank from your bike. Once removed, unscrew the 4 bolts that hold two chainrings together with a T-30 torx key. Remove both original rings.

That’s changed with newer Shimano road cranksets, which have settled on 110mm BCD for all chainring sizes, giving you the option to increase or decrease your chainring sizes without having to change the cranks as well.SRAM, Shimano and Campagnolo have all launched gravel groupsets – SRAM XPLR, Shimano GRX and Campagnolo Ekar – with gravel-specific gearing, and both 1x and 2x options. For the moment the big three — Shimano, Campagnolo and SRAM — claim to have no plans for super compact chainsets. Many first-generation gravel bikes had a compact road crankset with 50/34t chainrings, and you can still find some gravel or all-road bikes with this setup. I particularly notice the difference climbing. Just seems to be easier and I feel like I’m turning circles rather than ‘mashing’." Fitting a crank with smaller chainrings means you have to move your front derailleur down, and this is something to look out for before buying any sub-compact cranks. My gravel bike just had the necessary 8mm of adjustment, but I'm pretty sure the front derailleur mount on my road bike is too high. Alternatives

Many of Shimano’s road cranksets have four arms, but they’re not distributed evenly around the spindle.I've used 10 speed chainsets on my 11 speed set up for a long while, and I'm using a 10 speed front mech and shifter on my steel winter bike, but with 11 speed rear. That also works fine. combination is minimally faster than 50x12T. This is 47.5km/h (29.5mph) and is faster than 52x13T! At 100rpm it increases to 53km/h (32.9mph). And last but not least, the developers envisioned a Shimano GRX group that delivers top performance in gravel racing while offering options that make it affordable for cost-conscious drivers. By setting these design goals, Shimano has developed components that are also suitable for cyclocross, bike adventures and almost every similar type of bicycle diszplin. Simply put, the Shimano GRX is the world's best way to move freely and discover new territory on the Gravel bike. Nearly every new mountain bike now has a single-ring crankset, except at the very entry-level, making use of a cassette with a very large range to cut down on front-end complexity in the drivetrain. Although these gears have served me well, I now find that I rarely use the top two gears (50-12 and 50-13) but would like a lower bottom gear. I would like to keep the close ratios that the cassette provides and have been considering changing the crankset to a super-compact 46-30. This would still leave me with a more-than-adequate 105" top gear and give me a bottom gear of 27.5" compared with the existing 31.3". My local bike shop first suggested a Middleburn R02 x-type crankset, but the 46 and 30 chainrings do not seem to be available at present. There are Shimano GRX 600 46/30 sets available (albeit on a 5 week delivery), but I am concerned about compatibility. I would like to keep the front derailleur which looks like it has enough travel in the hanger to move down by the 8 mm needed to reach the smaller crankset. But I am not sure that it has enough travel to reach the outer ring on the GRX 600 which has a 2.5 mm wider chainline. I could also change to a compatible front derailleur (e.g. Shimano RX810), but this may need more pull than my Ergopower lever can give.

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