
SRAM XS-1270 T-Type 12-Speed Cassette One Color, 10-52t
10-52t
Velopedia Bicycle Archive
Original specifications: 29″ front / 27.5″ rear wheels · 49.56lbs / 22.48kg published weight · geometry for 5 published sizes.
Selling this bike? Create a shareable bike record
At a glance
| Frame Construction | Carbon C MX 170mm Travel, 4-Bar |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | RockShox Zeb Base, 170mm |
| Rear Shock | FOX Float X Performance, 205x65 |
| Shifters | SRAM 90 Eagle T-Type, Single Click, 12spd |
|---|---|
| Rear Derailleur | SRAM 70 Eagle T-Type, 12spd |
| Crankset | E13 Helix eSpec All Sizes: 155mm |
| Cassette | SRAM XS1270 Eagle T-Type, 10-52 |
| Chain | SRAM 70 Eagle T-Type, Flattop, 12spd |
| Brakes | SRAM DB8 |
|---|
| Headset | Cane Creek 10 IS Integrated Headset |
|---|---|
| Handlebar | Burgtec Aluminum Bar All Sizes: 35x800mm, 30mm Rise |
| Stem | OneUp Enduro Stem All Sizes: 42mm |
| Saddle | SDG Bel-Air V3, Max |
| Seatpost | SDG Tellis Dropper, 31.6 S: 125mm, M: 170mm, L/XL/XXL: 200mm |
| Hubs | (F) SRAM MTH 716, 15x110, 6-Bolt, 32h / (R) SRAM MTH 746, 12x148, HG, 6-Bolt, 32h |
|---|---|
| Rims | (F) Reserve 30|HD AL / (R) Reserve 30|HD AL |
| Front Tire | Maxxis Assegai 29"x2.5", 3C, MaxxGrip, Double Down |
| Rear Tire | Maxxis Minion DHRII 27.5"x2.5", 3C MaxxTerra, DoubleDown |
| Wheel Size | Mx |
Frame measurements by size.
Published frame view
Select an available measurement to locate it on the frame.
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Seat tube | 380 mm | 400 mm | 420 mm | 460 mm | 500 mm |
| Top tube | 571 mm | 596 mm | 617 mm | 640 mm | 670 mm |
| Head tube | 100 mm | 110 mm | 120 mm | 135 mm | 155 mm |
| Head-tube angle | 63.6/63.3 | 63.6/63.3 | 63.6/63.3 | 63.6/63.3 | 63.6/63.3 |
| Seat-tube angle | 78.6/78.3 | 78.7/78.4 | 78.7/78.4 | 78.7/78.4 | 78.6/78.3 |
| Chainstay / rear center | 440 mm | 443 mm | 446 mm | 449 mm | 452 mm |
| Wheelbase | 1220 mm | 1252 mm | 1280 mm | 1309 mm | 1346 mm |
| Bottom-bracket drop | 27/31 | 27/31 | 27/31 | 27/31 | 27/31 |
| Bottom-bracket height | 346/342 | 346/342 | 346/342 | 346/342 | 346/342 |
| Reach | 435/432 | 460/457 | 480/477 | 500/497 | 525/522 |
| Stack | 622/625 | 631/635 | 640/643 | 654/656 | 670/674 |
| Standover height | 745/740 | 739/735 | 738/733 | 738/733 | 735/730 |
| Front center | 780 mm | 809 mm | 834 mm | 860 mm | 894 mm |
Measurements may vary by configuration, wheel size, or frame setting where noted in the published chart.
Parts & serviceability

10-52t

29x2.5
Replacement option · verify fit

27.5x2.5
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
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.
Archived: 2026 Santa Cruz Bullit 70 · Electric-assist · Published sizes: S, M, L, XL, XXL
Archived: Frame: Carbon C MX 170mm Travel, 4-Bar · Fork: RockShox Zeb Base, 170mm
Archived: Fork: RockShox Zeb Base, 170mm · Rear shock: FOX Float X Performance, 205x65
Archived: Shifters: SRAM 90 Eagle T-Type, Single Click, 12spd · Rear derailleur: SRAM 70 Eagle T-Type, 12spd · Crankset: E13 Helix eSpec All Sizes: 155mm · Cassette: SRAM XS1270 Eagle T-Type, 10-52 · Chain: SRAM 70 Eagle T-Type, Flattop, 12spd
Archived: Brakes: SRAM DB8
Archived: Wheel size: MX · Rims: (F) Reserve 30|HD AL / (R) Reserve 30|HD AL · Hubs: (F) SRAM MTH 716, 15x110, 6-Bolt, 32h / (R) SRAM MTH 746, 12x148, HG, 6-Bolt, 32h · Front tire: Maxxis Assegai 29"x2.5", 3C, MaxxGrip, Double Down · Rear tire: Maxxis Minion DHRII 27.5"x2.5", 3C MaxxTerra, DoubleDown
Archived: Headset: Cane Creek 10 IS Integrated Headset · Handlebar: Burgtec Aluminum Bar All Sizes: 35x800mm, 30mm Rise · Stem: OneUp Enduro Stem All Sizes: 42mm · Seatpost: SDG Tellis Dropper, 31.6 S: 125mm, M: 170mm, L/XL/XXL: 200mm · Saddle: SDG Bel-Air V3, Max
Archived: Santa Cruz Bullit 70 · electric-assist identification
Share the details that would help another rider understand how this model fits, rides and holds up over time. Velopedia reviews every contribution before publication.
For privacy, Velopedia shows the same confirmation whether or not an experience exists.
Checking current listings…
Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.