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Needs to be roadie width/Q rather than MTB, and will run a 38t oval ring. Ideally 24mm axle rather than 30, so I can keep the existing Shimano BB.
Shimano have their GRX but would prefer something cheaper, or s/hand.
Could go 105/Ultegra 4 or 5-bolt (110bcd) but is there anything else?
Looked at Rotor but most are 30mm and/or weird spiders and ££. Sram are GXP or DUB.
ta
Easton EA90 Cinch? Paid about 80 for mine on Amazon. Cinch rings are cheap ( superstar, raceface) and a cheap 30mm BB.
Or Apex and a GXP shim for your existing BB as a really cheap option, although a 38tboval in the right BCD will probably cost you.
Depending on your bb SRAM rival or force could work. I'm using a wheels manufacturing press fit so just swapped the non-driveside bearing to a gxp friendly one. (Of course after that I discovered you can buy a spacer, but neither is a great hardship.
As ever Spa cycles will sort you out a square taper job in any size you like. They even do narrow wide now.
You have pretty specific requirements, but I've literally just purchased and used a new chainset as I was fed up (after six years of ownership) of the high Q-Factor of my original chainset. Originally I had Sram X01 170mm length Q-factor of 168mm with a Hope BSA threaded bottom bracket and 24mm to GXP converter. The bearings had also worn on my bottom bracket.
So, I finally relinquished and forked out for the Sram X11 chainset 170mm with its 156mm Q-factor. I paired this with a new Praxis M24 BSA Threaded bottom bracket which needs no GXP adaptor as the bearings are the correct size. Firstly and most importantly the Praxis uses very high quality Enduro bearings that can be purchased from Bike24 for 16 euros for the pair plus p&p. These bearings are wider and higher quality than the Hope bearings which would have cost £40 for the pair. The entire Praxis bottom bracket cost £31.
So whilst not a 24mm chainset it might be worth considering that combo. The narrower Q-factor definitely makes a difference as I find my feet swivel and roll less. I ride a road bike too but these were for my mountain bike.
Quick postscript. The Praxis bb uses the same tool to install as the Hope and presumably the Shimano bb. It's a standard bb tool so no additional cost there if you already have one.
I ran 105 with a 36t Oval, worked spot on!
Cheaper than grx 1x?
So you want 1x specific, road q factor and better than grx and less than £99? that's gonna be seriously hard to find......
I had exact same requirements last week.
Bare in mind you'll also need a chain ring if you go 2nd hand and it'll soon cost more than grx. Unless your willing to wait out an eBay bargain.
I run a Tiagra 5 bolt 110 bcd I found on eBay for £25 on my SS.
I bought a Sram S950 chainset on ebay.
These are non series carbon cranks with a bolt on double spider
Unbolt the spider and fit your choice of direct mount ring in an offset of your choice. It's the standard Sram fitment just like mtb. I got a superstar ring.
And I just bought some used but very good condition SRAM Rival 1 cranks on eBay with no spider and just bought a direct mount ring from Superstar too. Solely because I love the look of direct mount rings with no chainring bolts.
SRAM Force 1 sometimes come up on eBay for <£100, especially with odd (not 40-42t) ring sizes.
cheers all, some good ideas there.
I'm happy to pay for an oval ring, on top of the cranks. The issue is whether to go 5-bolt 110bcd, 4-bolt 110, 4-bolt 104, direct mount (or other) on the cranks.
5-bolt 110 is good because:
- cheap s/hand 105/Ultegra
- looks okay with a single ring
4-bolt 110 is newer but doesn't look quite as tidy in singe ring.
4-bolt 104 has the Q issue already mentioned and narrows the market on 38t rings as most top out at 34t.
Ditto DM. So rings would be the pricey ones (AB, wolftooth et al).
Will do more lockdown research today...
I was about to offer you a Rotor Rex crankset but then saw you wanted road Q.
Likewise the SRAM X9 crankset.
Both I’ve used on my cyclocross/gravgrav/touring bikes.
Velotech sometimes have deals on Rotor.