Description
Transition Spur Carbon Eagle 70 (2026)
Built for modern XC and “downcountry” riding, the Spur takes a lightweight carbon frame, 120mm rear travel, and a 130mm Fox 34 Float SL Performance fork and turns it into a bike that feels fast everywhere. It’s sharp and efficient on climbs, but far more confident on technical descents than a traditional XC race bike. If you want a bike that can pin it on race day and still be a blast on every ride after, this is the Spur’s sweet spot.
Key highlights
- 130mm / 120mm travel built for aggressive XC and fast trail riding.
- Refined flex-stay rear end for traction, a supple start stroke, and a controlled “bottomless” feel.
- 29″ wheels for speed, rollover, and stability on technical lines.
- C.H.I.P.S geometry adjust to fine tune head angle and bottom bracket height.
Design and durability
- Carbon frame with 120mm rear travel.
- UDH compatibility, internal cable routing, and a clean, quiet setup.
- B.O.O.M. Box internal frame storage for tools and essentials.
Ride characteristics
- Lively and precise on climbs, corners, and punchy accelerations.
- More confidence on steeps and rough descents than a traditional XC bike.
- Stable at speed without feeling “dead” on mellow trails.
- Size-specific chainstays help keep handling balanced across sizes.
Fit, setup, and recommended upgrades
- We want every rider to get the most out of their new Spur.
- Local pickup customers: We can help dial in suspension sag, rebound, and cockpit setup before your first ride.
- Shipped bikes: Bikes arrive professionally assembled and test ridden. Our staff can assist with setup questions if needed.
- Recommended upgrades: Many riders choose pedals, frame protection, tire inserts, or a rotor size change to match local trails and riding style.
Transition Spur Carbon Eagle 70 (2026) – Full specifications
Frame
| Frame |
Spur Carbon 120mm (29″), flex-stay suspension design, C.H.I.P.S geo adjust, B.O.O.M. Box storage |
Suspension
| Fork |
Fox Float 34 SL Performance (130mm) |
| Rear shock |
Fox Float SL Performance (190x45mm) |
Wheels & tires
| Rims |
WTB ST i27 |
| Spokes |
Pillar Double Butted |
| Front hub |
Novatech D791SB |
| Rear hub |
Novatech D902SB |
| Tires |
Maxxis Forekaster EXO/TR (2.4) – Front & Rear |
| Included |
Tubeless valves & sealant |
Drivetrain
| Shifter |
SRAM Eagle 70 MMX |
| Rear derailleur |
SRAM Eagle 70 |
| Crankset |
SRAM Eagle 70 DUB (32t / 165mm) |
| Cassette |
SRAM XS 1270 (10-52t) |
| Chain |
SRAM Eagle 70 |
Brakes
| Brakes |
SRAM Motive Bronze |
| Rotors |
SRAM Centerline (180mm) |
Cockpit
| Headset |
FSA No.42/48/ACB |
| Handlebar |
RaceFace Aeffect R – SM/MD/LG/XL (780mm x 20mm rise) |
| Stem |
RaceFace Aeffect R (40mm) |
| Seatpost |
Dropper post – size-specific (LG/XL: 200mm) |
Color & weight
| Color options |
Nightshade, Frostberry |
| Weight |
28.8 lbs / 13.07 kg (Size MD) |
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|
Sizing and fit
Height ranges are a starting point. If you’re between sizes, compare reach and consider how you like your bike to feel.
|
|
| Frame size |
Recommended height |
| SM |
5’0″ – 5’7″ (153–170 cm) |
| MD |
5’4″ – 6’0″ (163–183 cm) |
| LG |
5’8″ – 6’3″ (173–190 cm) |
| XL |
6’0″ – 6’7″ (183–200 cm) |
Frame geometry (mm and degrees) Tap to open chart
|
|
| Size |
SM |
MD |
LG |
XL |
| Setting |
High / Low |
High / Low |
High / Low |
High / Low |
| Wheel size |
29″ |
| Travel (front/rear) |
130mm / 120mm |
| Reach (mm) |
430 / 425 |
460 / 455 |
485 / 480 |
510 / 505 |
| Stack (mm) |
608 / 612 |
617 / 621 |
626 / 630 |
640 / 644 |
| Effective top tube (mm) |
570 |
603 |
631 |
660 |
| Seat tube length (mm) |
360 |
390 |
430 |
460 |
| Effective seat tube angle (°) |
77.3 / 76.7 |
76.8 / 76.3 |
76.4 / 75.9 |
76.0 / 75.6 |
| Saddle height for effective STA (mm) |
600 |
660 |
720 |
780 |
| Actual seat tube angle (°) |
72.0 / 71.5 |
72.0 / 71.5 |
72.0 / 71.5 |
72.0 / 71.5 |
| Head tube length (mm) |
100 |
110 |
120 |
135 |
| Head tube angle (°) |
66.0 / 65.5 |
66.0 / 65.5 |
66.0 / 65.5 |
66.0 / 65.5 |
| Fork offset (mm) |
44 |
| Chainstay / rear center (mm) |
434 / 436 |
434 / 436 |
439 / 441 |
439 / 441 |
| Wheelbase (mm) |
1163 |
1197 |
1231 |
1262 |
| Bottom bracket drop (rear) (mm) |
40 / 47 |
40 / 47 |
40 / 47 |
40 / 47 |
| Estimated bottom bracket height (mm) |
335 / 328 |
335 / 328 |
335 / 328 |
335 / 328 |
| Standover height (mm) |
660 |
660 |
660 |
660 |
| C.H.I.P.S adjust |
Adjusts head tube angle by 0.5° and bottom bracket height by 7mm |
Component note: We reserve the right to make changes to product and component information at any time without notice, including equipment, specifications, models, colors, and materials.
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