Race Face Aeffect R Wheel Rear Rear Wheel
What the checker says338will not fit2124worth knowing
Run variant by variant through the mountain 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 5567 verified mountain bike parts in this catalog. 4790 produced no finding of any kind; that is Aeffect R Wheel Rear 27.5" (12 x 148 Boost HG - R). Aeffect R Wheel Rear 29" (12 x 157 Super Boost Microspline - R) clears 4554. Each variant produces 98 to 197 distinct errors and 0 distinct warnings.
Will not fit
- Will not fiterror · Rear TireRear wheel size mismatch: Rear wheel 27.5", Rear tire 29". On 370 of the 617 verified tires in this catalog. Applies to 6 of 12 variants.
- Will not fiterror · FrameRear axle mismatch: Frame is Boost 148x12 but Rear wheel hub is SuperBoost 157x12. On 228 of the 258 verified frames in this catalog. Applies to 6 of 12 variants.
- Will not fiterror · Front TireUnsupported wheel setup: front 27.5" / rear 29" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 223 of the 617 verified tires in this catalog. Applies to 6 of 12 variants.
- Will not fiterror · Rear TireRear wheel size mismatch: Rear wheel 29", Rear tire 27.5". On 223 of the 617 verified tires in this catalog. Applies to 6 of 12 variants.
- Will not fiterror · ForkUnsupported wheel setup: front 27.5" / rear 29" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 157 of the 490 verified forks in this catalog. Applies to 6 of 12 variants.
- Will not fiterror · Front WheelUnsupported wheel setup: front 27.5" / rear 29" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 90 of the 270 verified front wheels in this catalog. Applies to 6 of 12 variants.
- Will not fiterror · Front RimUnsupported wheel setup: front 27.5" / rear 29" matches no configuration (24"/24", 26"/26", 27.5"/27.5", 29"/29", 32"/32", mullet = 29" front / 27.5" rear). On 33 of the 75 verified rims in this catalog. Applies to 6 of 12 variants.
Wheel config, Frame. 186 more findings from the same check, on up to 2 of the 258 verified frames each.
Freehub, Cassette. 120 more findings from the same check, on up to 1 of the 60 verified cassettes each.
Rear axle, Frame. 7 more findings from the same check, on up to 21 of the 258 verified frames each.
Rear wheel size, Rear Tire. 4 more findings from the same check, on up to 21 of the 617 verified tires each.
Wheel config, Front Rim. 4 more findings from the same check, on up to 3 of the 75 verified rims each.
Wheel config, Front Tire. 4 more findings from the same check, on up to 21 of the 617 verified tires each.
Wheel config, Front Wheel. 4 more findings from the same check, on up to 3 of the 270 verified front wheels each.
Wheel config, Fork. 2 more findings from the same check, on up to 12 of the 490 verified forks each.
Open a variant in the builder to see the ones that apply to your own parts.
Worth knowing
Rear rotor interface unstated, Rear Rotor. 2124 more findings from the same check, on up to 1 of the 177 verified rotors each.
Open a variant in the builder to see the ones that apply to your own parts.
$385.99 MSRP
What the maker states
- Wheel
- Built for a 27.5" wheel (on 6 of 12 variants); Built for a 29" wheel (on 6 of 12 variants)
- Freehub
- / driver Shimano HG (on 4 of 12 variants); / driver Shimano Micro Spline (on 4 of 12 variants); / driver SRAM XD (on 4 of 12 variants)
- Internal width
- Internal rim width 30 mm
- Hub
- Spacing Boost 148x12 (on 6 of 12 variants); Spacing SuperBoost 157x12 (on 6 of 12 variants)
A value shown as a set or a range differs between this model’s variants and is never one variant’s spec.
12 verified variants
| Variant | Wheel | Freehub | Hub | Price (MSRP) | Weight | Source | Last checked | Build |
|---|---|---|---|---|---|---|---|---|
| Aeffect R Wheel Rear 27.5" (12 x 148 Boost HG - R) | Built for a 27.5" wheel | / driver Shimano HG | spacing Boost 148x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 27.5" (12 x 148 Boost XD - R) | Built for a 27.5" wheel | / driver SRAM XD | spacing Boost 148x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 27.5" (12 x 148 Boost Microspline - R) | Built for a 27.5" wheel | / driver Shimano Micro Spline | spacing Boost 148x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 27.5" (12 x 157 Super Boost HG - R) | Built for a 27.5" wheel | / driver Shimano HG | spacing SuperBoost 157x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 27.5" (12 x 157 Super Boost XD - R) | Built for a 27.5" wheel | / driver SRAM XD | spacing SuperBoost 157x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 27.5" (12 x 157 Super Boost Microspline - R) | Built for a 27.5" wheel | / driver Shimano Micro Spline | spacing SuperBoost 157x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 29" (12 x 148 Boost HG - R) | Built for a 29" wheel | / driver Shimano HG | spacing Boost 148x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 29" (12 x 148 Boost XD - R) | Built for a 29" wheel | / driver SRAM XD | spacing Boost 148x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 29" (12 x 148 Boost Microspline - R) | Built for a 29" wheel | / driver Shimano Micro Spline | spacing Boost 148x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 29" (12 x 157 Super Boost HG - R) | Built for a 29" wheel | / driver Shimano HG | spacing SuperBoost 157x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 29" (12 x 157 Super Boost XD - R) | Built for a 29" wheel | / driver SRAM XD | spacing SuperBoost 157x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
| Aeffect R Wheel Rear 29" (12 x 157 Super Boost Microspline - R) | Built for a 29" wheel | / driver Shimano Micro Spline | spacing SuperBoost 157x12 | $385.99 | not stated | maker’s page | 2026-09-08 | Build with this |
The rest of what the maker states7 not published
7 further fields the checker looks for are not published by Race Face, so we leave them blank rather than estimate them, and those 7 checks stay silent on this rear wheel. They are rotor mount, maximum tire, minimum tire, maximum tire mm, maximum tire basis, tire range kind and maximum system weight. Each is recorded as “not stated by the maker (not checked)”.
Source: each variant links the maker’s own page in the table above. Last checked 2026-09-08.
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.
- 5DEV R-SPEC Trail/Enduro Cranks (Crankset) No conflicts found
- 9point8 Fall Line (Dropper Post) No conflicts found
- 9point8 Stout (31.8, 30mm) (Stem) No conflicts found
- ACID SLX 30 front (Front Wheel) No conflicts found
- Acros ZS44/ZS56 (Headset) No conflicts found
- Acros ZS56/ZS56 (Headset) No conflicts found
6 of 1753 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.