Bottom Bracket Bearing Model Reference: 6806, GXP, DUB & Hope
Compare a bottom-bracket bearing by exact part number, ring geometry and its named assembly. A 6806, a dedicated 24×37 mm bearing, a stepped GXP bearing and a DUB-compatible service bearing are distinct records. Matching one or even three nominal dimensions does not approve interchange.
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Verified cartridge sizes and exact service-part identifiers
Dimensions are in millimetres and preserve the maker's nominal labels. The width column refers to the outer-ring/body width in the GXP row; its extended inner ring is separately identified. These five records are Enduro bearings specified by Wheels Manufacturing, not a claim about every original-equipment bottom bracket.
5 reference rows. Filters apply as you type.
On smaller screens, scroll the table sideways to read all columns.
| Wheels service part | d (mm) | D (mm) | B (mm) | Published type / grade | Exact identity and limitation |
|---|---|---|---|---|---|
| SB-6806-1 | 30 | 42 | 7 | Sealed radial; ABEC 3 | Enduro BB6806LLB/C3 marking; a named 6806 record, not every 6806RS suffix. |
| SB-71806-1 | 30 | 42 | 7 | Angular contact; ABEC 5 | The product specifies its red seal facing outward; do not generalize by seal colour. |
| SB-24X37-1 | 24 | 37 | 7 | Sealed radial; ABEC 3 | Enduro BBMR2437LLB-BLK; dedicated 24 mm bore. |
| SB-22X37X8-1 | 22 | 37 | 8 | GXP non-drive; ABEC 3 | Enduro MR22378LLB-E; inner ring is 11.5 mm wide and extends toward frame centre. |
| SB-6806/29 | 29 | 42 | 7 | DUB-compatible; ABEC 3 | Nominal 29 mm label; verified for Wheels DUB-compatible assemblies, supplied as a pair. |
No verified row matches these filters. Clear a field to widen the reference; an empty result does not prove that a part does not exist.
Named Wheels assemblies: drive-side and non-drive-side parts
This is a manufacturer-scoped service matrix, not a universal crank compatibility chart. DS means drive side and NDS means non-drive side. Spacers, covers and installed width still belong to the complete assembly.
10 reference rows. Filters apply as you type.
On smaller screens, scroll the table sideways to read all columns.
| Wheels assembly | Spindle version | DS bearing | NDS bearing |
|---|---|---|---|
| BB30-KIT | 30 mm | SB-6806-1 | SB-6806-1 |
| BB30-AC-KIT | 30 mm | SB-71806-1 | SB-71806-1 |
| BB30-OUT-1 | 24 mm | SB-24X37-1 | SB-24X37-1 |
| BB30-OUT-7 | GXP 22/24 mm | SB-24X37-1 | SB-22X37X8-1 |
| BB86/92-BB | 24 mm | SB-24X37-1 | SB-24X37-1 |
| BB86/92-SRAM7 | GXP 22/24 mm | SB-24X37-1 | SB-22X37X8-1 |
| BB-BSA29-BB | DUB nominal 29 mm | SB-6806/29 | SB-6806/29 |
| BB-BSA30-BB | 30 mm | SB-6806-1 | SB-6806-1 |
| PF30-BB | 30 mm | SB-6806-1 | SB-6806-1 |
| PF30-BB-AC | 30 mm | SB-71806-1 | SB-71806-1 |
No verified row matches these filters. Clear a field to widen the reference; an empty result does not prove that a part does not exist.
GXP, DUB and 24 mm: the differences a size-only search misses
In the listed Wheels GXP assemblies, the 24 mm drive-side bearing and 22 mm non-drive bearing are not mirror-image copies. The NDS bearing has an extended inner ring. Replacing it with a plain equal-width cartridge would discard an essential geometric distinction.
The SB-6806/29 source uses a nominal 29 mm bearing description. That catalogue label is retained here; it is not a tolerance specification or a measurement of the crank. Verify the exact DUB-compatible assembly instead of treating every bearing sold under DUB as identical.
For the Wheels BB86/92-BB assembly, the recorded 24 mm version uses replaceable SB-24X37-1 bearings. Its pack includes two dust seals, two 0.5 mm and two 1.0 mm spindle spacers. Supplied quantities are not an instruction to install every spacer.
Hope threaded bottom brackets: identify the correct service family
Hope's threaded range uses replaceable cartridges. Its 24 mm and 30 mm documents identify different service families; the spindle size alone is not the full bearing envelope. The current PF41 range is a separate cup system, including a dedicated 30 mm version with custom bearings.
Do not label Hope BSA30 as BB30 simply because both mention a 30 mm spindle. First identify whether the frame is threaded, PF41 or another press-fit arrangement.
On smaller screens, scroll the table sideways to read all columns.
| Hope manual / assembly | Bearing reference | Other identified part | Scope |
|---|---|---|---|
| 24 mm threaded BB | BBSP108:S stainless cartridge | BBSP104 external seal | 24 mm system; do not substitute an unverified generic bearing size. |
| 30 mm threaded BB / BBSS30N | S71806 stainless bearing | BB003-4 dust shield | BSA 30 mm-spindle assembly; distinct from a direct-fit BB30 frame standard. |
Ceramic versus steel, angular contact and ABEC: compare separate properties
Use the named radial and angular-contact records above as a concrete comparison. A best-bearing recommendation needs the correct fit first, followed by the riding conditions and the exact construction. This reference does not turn manufacturer material claims into independent endurance or watt-loss results.
On smaller screens, scroll the table sideways to read all columns.
| Property | Useful comparison | What it does not establish |
|---|---|---|
| Radial versus angular-contact design | Compare the specified load direction and assembly orientation. | The same 30×42×7 envelope does not erase the design difference. |
| ABEC 3 versus ABEC 5 | Compare the published precision grade for the exact product. | A higher label alone is not evidence of lower installed drag or longer cycling life. |
| Steel versus ceramic-labelled construction | Verify which components are ceramic, plus the rings, seals and grease. | No universal value-for-money or speed winner follows from the material label. |
| Seal and grease package | Compare protection and maintenance needs for the actual conditions. | A long unloaded hand-spin is not a controlled test of performance in the bicycle. |
Where this reference deliberately stops
Trek's GXP oversized BB90/BB95 V2 product record gives conflicting bore figures in its description and specification fields. It identifies a 37.1 mm outside diameter and 8 mm width, but this batch does not publish a resolved bore or approve an oversized repair. Do not press an oversize bearing into a normal seat based on the model name.
A bicycle brand, groupset name or family label does not establish a complete replacement kit. Exact Cannondale, Trek Madone, Shimano 105/XT/Ultegra, Campagnolo, FSA, SRAM, Praxis and other generation-specific replacements remain subject to their own documented assembly. Missing information is not filled with a generic 6806 recommendation.
What the evidence can — and cannot — tell you
| Observation or context | Interpretation to consider | Verification needed |
|---|---|---|
| Same d×D×B | A dimensional candidate only. | Confirm seal, contact design, inner-ring extension and assembly approval. |
| Drive versus non-drive side | Some systems need different parts on each side. | GXP is a clear example; preserve the side designation. |
| ABEC or ceramic label | A specified feature, not an installed performance test. | Check the complete construction, sealing and application requirements. |
A practical investigation sequence
Identify and record
Read the full part number on the bottom bracket and the crank, then label drive and non-drive positions.
Check the context
Use exact millimetre fields to narrow the verified cartridge table; blank fields leave that dimension unrestricted.
Verify before acting
Cross-check the named assembly table and any special inner-ring or seal instruction. Do not collapse nominal 29 mm service-part notation into an unverified measured tolerance.
Keep the decision traceable
Keep unknown suffixes, legacy parts and repair-fit claims unresolved until a model-specific source confirms them.
Capture the information a model search cannot guess
Keep this checklist with your inspection or comparison. Checking a box only records that you have collected the item; it does not certify the bearing.
0 of 4 information groups recorded.
Technical basis & editorial scope
Original BearingScope workflow, written for catalogue research and comparison. Manufacturer material is used to check principles, not copied as a product endorsement or substituted for model-specific instructions. Reviewed 1 October 2026.
- Wheels SB-6806-1 / Enduro 6806 record — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Wheels SB-71806-1 angular-contact bearing record — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Wheels SB-24X37-1 bearing record — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Wheels SB-22X37X8-1 GXP non-drive bearing record — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Wheels SB-6806/29 DUB-compatible service bearing — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Wheels Manufacturing named bottom-bracket service-parts matrix — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Wheels BB86/92-BB assembly record — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Hope threaded bottom-bracket product reference — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Hope PF41 bottom-bracket product reference — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Hope 24 mm threaded bottom-bracket manual, INST012_EN V1 — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Hope 30 mm threaded bottom-bracket manual, INST011_EN V1 in V2 document — Exact named component and stated dimensions or procedure scope only. Collected 2026-10-01. No universal fitment, repair approval or independent performance result is inferred.
- Trek GXP oversized BB90/BB95 V2 bearing record — conflicting bore data — Description and specification fields disagree on bore. Conflict retained; no resolved bore or repair-fit approval is published.
Source addresses and collection status are retained in the internal audit. No unpublished dimensions, torque settings, service intervals or interchange approvals are inferred.