Velopedia Bicycle Archive
2027 Santa Cruz Tallboy 90
Mountain bicycle from the Velopedia specification archive.
- Original MSRP
- $5,899.00
- Sizes
- XS, S, M, L, XL, XXL
- Colors
- Gloss Carbon, Gloss Midnight Violet
- Weight
- 30.79 lbs / 13.97 kg
- Geometry
- 6 manufacturer sizes · Ride analysis
- Archive ID
- 900000420
Current market
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Velopedia analysis
What the specifications mean
Suspension at both ends means fork and shock setup should be considered together; mismatched sag or rebound can leave the front and rear reacting very differently. The 520% cassette range describes the available gearing more clearly than the component-group name alone. Carbon construction changes the inspection emphasis from metal-style dents and corrosion to impact damage, ripples and overtightened clamp areas.
Suspension setup
Front + rear
Fork and shock pressure, sag and rebound should be balanced and recorded independently.
Gearing
520% cassette range
Calculated from the published 10–52-tooth sprocket span.
Frame material
Carbon / composite
Look for impact damage and clamp marks rather than metal-style dents or rust.
Wheel standard
29 in · 622 mm
Rim width and frame or fork clearance remain important beyond nominal diameter.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
- SuspensionAsk when the fork and shock were last serviced. Check the stanchions for damage, look for oil at the seals, cycle both units through their travel and test the suspension pivots for play.Evaluate the suspension →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 12-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 22 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2027 Santa Cruz Tallboy 90 · Mountain · Published sizes: XS, S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: Carbon CC 29" 130mm Travel 4-Bar · Fork: RockShox Pike Select, 140mm
Suspension
Evaluate the suspension →Archived: Fork: RockShox Pike Select, 140mm · Rear shock: RockShox Deluxe Select+, 185x50
Drivetrain
Check drivetrain wear →Archived: Shifters: SRAM 90 Eagle T-Type, 12spd · Rear derailleur: SRAM 90 Eagle T-Type, 12spd · Crankset: SRAM 90 Eagle DUB T-Type, 32t XS-S: 165mm, M-XXL: 170mm · Bottom bracket: SRAM DUB 73mm MTB Wide BB · Cassette: SRAM XS 1275 Eagle T-Type, 10-52t · Chain: SRAM GX Eagle T-Type, Flattop, 12spd
Brakes
Inspect the brakes →Archived: Brakes: SRAM DB8
Wheels and tires
Check wheels and tires →Archived: Wheel size: 29" · Rims: (F) Reserve 30|TR AL / (R) Reserve 30|TR AL · Hubs: (F) DT Swiss 370, 15x110, 6-Bolt, 28h / (R) DT Swiss 370, 12x148, XD, 6-Bolt, 36t, 28h · Front tire: Maxxis Forekaster 29"x2.4", MaxxTerra, EXO · Rear tire: Maxxis Forekaster 29"x2.4", MaxxTerra, EXO
Controls and contact points
Archived: Headset: Cane Creek 50 IS Integrated Headset · Handlebar: OneUp Aluminum Bar, 35mm XS-M: 760mm, 20mm Rise, L-XXL: 800mm, 35mm Rise · Stem: OneUp Enduro Stem All Sizes: 42mm · Seatpost: OneUp Dropper Post, 31.6 XS: 120mm, S: 150mm, M: 180mm, L-XL: 210mm, XXL: 240mm · Saddle: SDG Bel-Air V3 Lux-Alloy
Before and during the test ride
Follow the full used-bike inspection order →Interpretation based on the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Frameset
| Frame Construction | Carbon CC 29" 130mm Travel 4-Bar |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | RockShox Pike Select, 140mm |
| Rear Shock | RockShox Deluxe Select+, 185x50 |
Drivetrain
| Shifters | SRAM 90 Eagle T-Type, 12spd |
|---|---|
| Rear Derailleur | SRAM 90 Eagle T-Type, 12spd |
| Crankset | SRAM 90 Eagle DUB T-Type, 32t XS-S: 165mm, M-XXL: 170mm |
| Bottom Bracket | SRAM DUB 73mm MTB Wide BB |
| Cassette | SRAM XS 1275 Eagle T-Type, 10-52t |
| Chain | SRAM GX Eagle T-Type, Flattop, 12spd |
Brakes
| Brakes | SRAM DB8 |
|---|
Cockpit & Contact Points
| Headset | Cane Creek 50 IS Integrated Headset |
|---|---|
| Handlebar | OneUp Aluminum Bar, 35mm XS-M: 760mm, 20mm Rise, L-XXL: 800mm, 35mm Rise |
| Stem | OneUp Enduro Stem All Sizes: 42mm |
| Saddle | SDG Bel-Air V3 Lux-Alloy |
| Seatpost | OneUp Dropper Post, 31.6 XS: 120mm, S: 150mm, M: 180mm, L-XL: 210mm, XXL: 240mm |
Wheels & Tires
| Hubs | (F) DT Swiss 370, 15x110, 6-Bolt, 28h / (R) DT Swiss 370, 12x148, XD, 6-Bolt, 36t, 28h |
|---|---|
| Rims | (F) Reserve 30|TR AL / (R) Reserve 30|TR AL |
| Front Tire | Maxxis Forekaster 29"x2.4", MaxxTerra, EXO |
| Rear Tire | Maxxis Forekaster 29"x2.4", MaxxTerra, EXO |
| Wheel Size | 29" |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Seat tube | 360/370 | 380/380 | 400/400 | 420/430 | 450/450 | 500/500 |
| Top tube | 542/542 | 569/570 | 596/596 | 616/616 | 637/638 | 666/666 |
| Head tube | 90 mm | 100 mm | 115 mm | 125 mm | 140 mm | 155 mm |
| Head-tube angle | 65.1°/64.8° | 65.1°/64.8° | 65.1°/64.8° | 65.1°/64.8° | 65.1°/64.8° | 65.1°/64.8° |
| Seat-tube angle | 77.6°/77.3° | 77.6°/77.3° | 77.3°/77° | 77.4°/77.2° | 77.5°/77.3° | 77.5°/77.3° |
| Chainstay / rear center | 435/435.5 | 435/435.5 | 435/435.5 | 438/438.5 | 440/440.5 | 444/444.5 |
| Wheelbase | 1156/1156 | 1185/1186 | 1212/1212 | 1239/1239 | 1267/1267 | 1302/1303 |
| Bottom-bracket drop | 36/39 | 36/39 | 36/39 | 36/39 | 36/39 | 36/39 |
| Bottom-bracket height | 336/333 | 336/333 | 336/333 | 336/333 | 336/333 | 336/333 |
| Reach | 410/407 | 435/432 | 455/452 | 475/472 | 495/492 | 520/517 |
| Stack | 601/603 | 610/612 | 624/626 | 633/635 | 646/649 | 660/662 |
| Standover height | 699/695 | 703/699 | 718/714 | 728/725 | 742/739 | 758/755 |
| Front center | 721/721 | 750/750 | 777/776 | 801/801 | 827/827 | 858/858 |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry interpretation
What this geometry means
The archived table contains paired manufacturer values. Velopedia separates the numerically higher and lower chassis states for interpretation without treating them as separate bicycles.
XS geometry
Configuration
Riding position
The 601 mm stack is tall relative to the 410 mm reach, pointing to a more upright front-end position rather than an especially long, low cockpit. Its 77.6° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 65.1° head angle combined with a 1156 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Lower geometry, this configuration raises the bottom bracket by 3 mm, reduces bottom-bracket drop by 3 mm, steepens the head angle by 0.3°, and extends reach by 3 mm.
Archive context
The seat angle of 77.6° sits toward the steeper end. The chainstay of 435 mm sits somewhat longer than typical. Its wheelbase of 1156 mm sits somewhat longer than typical.
Riding position
The 603 mm stack is tall relative to the 407 mm reach, pointing to a more upright front-end position rather than an especially long, low cockpit. Its 77.3° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 64.8° head angle combined with a 1156 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Higher geometry, this configuration lowers the bottom bracket by 3 mm, increases bottom-bracket drop by 3 mm, slackens the head angle by 0.3°, and shortens reach by 3 mm.
Archive context
The seat angle of 77.3° sits toward the steeper end. The chainstay of 435.5 mm sits somewhat longer than typical. The head angle of 64.8° sits somewhat slacker than typical.
S geometry
Configuration
Riding position
The 610 mm stack is tall relative to the 435 mm reach, pointing to a more upright front-end position rather than an especially long, low cockpit. Its 77.6° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 65.1° head angle combined with a 1185 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Lower geometry, this configuration raises the bottom bracket by 3 mm, reduces bottom-bracket drop by 3 mm, steepens the head angle by 0.3°, and extends reach by 3 mm.
Archive context
The seat angle of 77.6° sits toward the steeper end. Its reach of 435 mm sits somewhat longer than typical. Its bottom-bracket drop of 36 mm sits somewhat deeper than typical.
Riding position
The 612 mm stack is tall relative to the 432 mm reach, pointing to a more upright front-end position rather than an especially long, low cockpit. Its 77.3° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 64.8° head angle combined with a 1186 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Higher geometry, this configuration lowers the bottom bracket by 3 mm, increases bottom-bracket drop by 3 mm, slackens the head angle by 0.3°, and shortens reach by 3 mm.
Archive context
The seat angle of 77.3° sits somewhat steeper than typical. Its bottom-bracket drop of 39 mm sits somewhat deeper than typical. The chainstay of 435.5 mm sits somewhat longer than typical.
M geometry
Configuration
Riding position
A 455 mm reach paired with 624 mm of stack gives this size a moderate frame proportion: roomy enough when standing without pushing strongly toward either a very low or very upright front end. Its 77.3° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 65.1° head angle combined with a 1212 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Lower geometry, this configuration raises the bottom bracket by 3 mm, reduces bottom-bracket drop by 3 mm, steepens the head angle by 0.3°, and extends reach by 3 mm.
Archive context
The seat angle of 77.3° sits somewhat steeper than typical. Its bottom-bracket drop of 36 mm sits close to the middle of the group. Its stack of 624 mm sits close to the middle of the group.
Riding position
A 452 mm reach paired with 626 mm of stack gives this size a moderate frame proportion: roomy enough when standing without pushing strongly toward either a very low or very upright front end. Its 77° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 64.8° head angle combined with a 1212 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Higher geometry, this configuration lowers the bottom bracket by 3 mm, increases bottom-bracket drop by 3 mm, slackens the head angle by 0.3°, and shortens reach by 3 mm.
Archive context
The seat angle of 77° sits somewhat steeper than typical. Its bottom-bracket drop of 39 mm sits somewhat deeper than typical. Its stack of 626 mm sits somewhat taller than typical.
L geometry
Configuration
Riding position
A 475 mm reach paired with 633 mm of stack gives this size a moderate frame proportion: roomy enough when standing without pushing strongly toward either a very low or very upright front end. Its 77.4° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 65.1° head angle combined with a 1239 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Lower geometry, this configuration raises the bottom bracket by 3 mm, reduces bottom-bracket drop by 3 mm, steepens the head angle by 0.3°, and extends reach by 3 mm.
Archive context
The seat angle of 77.4° sits toward the steeper end. Its bottom-bracket drop of 36 mm sits somewhat deeper than typical. Its reach of 475 mm sits close to the middle of the group.
Riding position
A 472 mm reach paired with 635 mm of stack gives this size a moderate frame proportion: roomy enough when standing without pushing strongly toward either a very low or very upright front end. Its 77.2° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 64.8° head angle combined with a 1239 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Higher geometry, this configuration lowers the bottom bracket by 3 mm, increases bottom-bracket drop by 3 mm, slackens the head angle by 0.3°, and shortens reach by 3 mm.
Archive context
The seat angle of 77.2° sits somewhat steeper than typical. Its reach of 472 mm sits somewhat shorter than typical. Its bottom-bracket drop of 39 mm sits somewhat deeper than typical.
XL geometry
Configuration
Riding position
A 495 mm reach paired with 646 mm of stack gives this size a moderate frame proportion: roomy enough when standing without pushing strongly toward either a very low or very upright front end. Its 77.5° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 65.1° head angle combined with a 1267 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Lower geometry, this configuration raises the bottom bracket by 3 mm, reduces bottom-bracket drop by 3 mm, steepens the head angle by 0.3°, and extends reach by 3 mm.
Archive context
The seat angle of 77.5° sits toward the steeper end. Its reach of 495 mm sits somewhat shorter than typical. Its bottom-bracket drop of 36 mm sits somewhat deeper than typical.
Riding position
A 492 mm reach paired with 649 mm of stack gives this size a moderate frame proportion: roomy enough when standing without pushing strongly toward either a very low or very upright front end. Its 77.3° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 64.8° head angle combined with a 1267 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Higher geometry, this configuration lowers the bottom bracket by 3 mm, increases bottom-bracket drop by 3 mm, slackens the head angle by 0.3°, and shortens reach by 3 mm.
Archive context
Its reach of 492 mm sits toward the shorter end. The seat angle of 77.3° sits somewhat steeper than typical. Its bottom-bracket drop of 39 mm sits somewhat deeper than typical.
XXL geometry
Configuration
Riding position
With 520 mm of reach and 660 mm of stack, the frame has a relatively long, low proportion that should leave plenty of room when standing and put the front end toward the lower side of modern mountain-bike fit. Its 77.5° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 65.1° head angle combined with a 1302 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Lower geometry, this configuration raises the bottom bracket by 3 mm, reduces bottom-bracket drop by 3 mm, steepens the head angle by 0.3°, and extends reach by 3 mm.
Archive context
Its stack of 660 mm sits toward the lower end. Its wheelbase of 1302 mm sits toward the shorter end. The head angle of 65.1° sits toward the steeper end.
Riding position
With 517 mm of reach and 662 mm of stack, the frame has a relatively long, low proportion that should leave plenty of room when standing and put the front end toward the lower side of modern mountain-bike fit. Its 77.3° effective seat angle places the seated rider relatively forward, a layout that generally helps keep body weight centered on steep climbs.
Handling tendencies
A 64.8° head angle combined with a 1303 mm wheelbase points to stability-oriented steering and chassis behavior. The longer the chassis and slacker the front end, the more the bike tends to favor composure over very quick direction changes.
Configuration changes
Compared with Higher geometry, this configuration lowers the bottom bracket by 3 mm, increases bottom-bracket drop by 3 mm, slackens the head angle by 0.3°, and shortens reach by 3 mm.
Archive context
Its bottom-bracket drop of 39 mm sits toward the deeper-drop end. Its reach of 517 mm sits toward the shorter end. Its stack of 662 mm sits somewhat lower than typical.
Geometry describes frame proportions and likely tendencies, not a ride test. Rider proportions, cockpit setup, tires, suspension settings, wheel configuration, and component choices can materially change how a bicycle fits and feels.
Gallery
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.