Rene Herse Umtanum Ridge 650Bx55 Standard Front Tire
What the checker says45will not fit52check before you buy
Run variant by variant through the gravel bike builder’s own engine. Every sentence below is the checker’s, unedited. Nothing here says this part fits your bike; it says what it does and does not fit among the parts we hold.
Checked against 739 verified gravel bike parts in this catalog. 562 produced no finding of any kind.
Will not fit
- Will not fiterror · Rear WheelWheel size mismatch: Rear wheel = 700c, Front tire = 650b. A road or gravel build runs one wheel size end to end. On 59 of the 71 verified rear wheels in this catalog.
- Will not fiterror · Front WheelWheel size mismatch: Front wheel = 700c, Front tire = 650b. A road or gravel build runs one wheel size end to end. On 49 of the 58 verified front wheels in this catalog.
- Will not fiterror · ForkWheel size mismatch: Fox 32 Taper-Cast is a 700c fork but the build is 650b. On 2 of the 31 verified forks in this catalog.
- Will not fiterror · ForkWheel size mismatch: RockShox Rudy XL Ultimate is a 700c fork but the build is 650b. On 2 of the 31 verified forks in this catalog.
- Will not fiterror · ForkWheel size mismatch: RockShox Rudy XL is a 700c fork but the build is 650b. On 2 of the 31 verified forks in this catalog.
- Will not fiterror · ForkWheel size mismatch: RockShox Rudy XPLR (Base) is a 700c fork but the build is 650b. On 2 of the 31 verified forks in this catalog.
Rg wheel size, Frame. 36 more findings from the same check, on up to 1 of the 74 verified frames each.
Rg wheel size, Fork. 3 more findings from the same check, on up to 1 of the 31 verified forks each.
Open a variant in the builder to see the ones that apply to your own parts.
Check before you buy
- Check before you buywarning · ForkTire clearance: the 55mm tire is at the limit. RockShox lists a maximum tire width of 55.5mm, a measured width of the tire rather than the size printed on its sidewall. A printed tire width carries about 3mm of tolerance and grows with internal rim width, pressure and use, so measure your own clearance before buying. On 4 of the 31 verified forks in this catalog.
- Check before you buywarning · ForkTire clearance: 55mm tire is wider than RockShox Rudy Ultimate XPLR's 50mm fork max. On 2 of the 31 verified forks in this catalog.
- Check before you buywarning · ForkTire clearance: 55mm tire is wider than RockShox Rudy XPLR (Base)'s 50mm fork max. On 2 of the 31 verified forks in this catalog.
Rg tire rim, Front Wheel. 31 more findings from the same check, on up to 1 of the 58 verified front wheels each.
Rg tire fork, Fork. 17 more findings from the same check, on up to 1 of the 31 verified forks each.
Rg tire fork near, Fork. 1 more finding from the same check, on up to 1 of the 31 verified forks each.
Open a variant in the builder to see the ones that apply to your own parts.
$87.00 MSRP·570 g
What the maker states
- Wheel
- Built for a 650b wheel
- Width
- Tire width 55
- Casing
- standard casing
- Tubeless
- Ready (maker-stated)
The rest of what the maker states2 not published
2 further fields the checker looks for are not published by Rene Herse, so we leave them blank rather than estimate them, and those 2 checks stay silent on this front tire. They are compound and hookless approved. Each is recorded as “not stated by the maker (not checked)”.
Source: the maker’s page. Last checked 2026-08-10.
Checked against
The checker ran this model against every verified part below that it has a slot for, the same way it checks a build in the builder. What follows is the verdict it actually produced for that specific pairing — not a recommendation, and not a guarantee any of these parts fits your own bike.
- 3T Exploro Race (Frame) No conflicts found
- 3T Fango LTD (Fork) No conflicts found
- 8bar Gravel Carbon Disc Fork v2 (Fork) Check before you buy
- 9point8 Fall Line R (Dropper Post) No conflicts found
- Acros ZS44/28.6 | EC44/40 Headset (Headset) No conflicts found
- All-City Cosmic Stallion LTD (Frame) No conflicts found
6 of 435 counterparts with a page of their own that the checker actually probed this model against, in alphabetical order by brand and model — never by price, popularity or the verdict itself.