Santa Cruz Bullit 4 Carbon C - 90 2026 - Electric Mountain Bike

Built for riders who seek out the toughest lines, the Santa Cruz Bullit 4 Carbon C brings downhill-bike confidence to an e-MTB platform. Its Carbon C frame uses a robust 4-bar suspension layout and mixed-wheel setup (29” front, 27.5” rear) to balance rollover ability with agile cornering, all while delivering a smooth 170mm of travel.
Key Features:
- Carbon C MX frame, 170mm travel, DH-inspired geometry
- FOX 38 Float Performance fork, 170mm
- FOX Float X Performance shock, 170mm rear travel
- SRAM 90 Eagle T-Type 12-speed drivetrain
- SRAM Maven Base hydraulic disc brakes
- MX wheelset with Maxxis Assegai & Minion DHR II tyres
- OneUp dropper and cockpit for control
- Available with 0% APR finance
Drive Information:
- Bosch Performance CX motor, max 85Nm torque
- 600Wh Bosch PowerTube battery
- Bosch display with remote switch
The Bullit’s DH-inspired geometry provides stability when trails get steep and rough, making it an excellent match for riders who love technical descents but still need to climb efficiently to reach them. The Bosch Performance CX motor adds reliable assistance with up to 85Nm of torque, helping you conserve energy for the demanding terrain that defines this bike’s purpose.
Suspension duties are handled by a FOX 38 Float Performance fork and FOX Float X Performance shock—both chosen for durability and control on harsh, high-impact ground. The SRAM 90 Eagle T-Type drivetrain offers crisp, secure shifting under load, ideal for e-MTB torque demands, while SRAM Maven Base brakes deliver powerful stopping performance.
Reserve 30|HD AL rims and e-specific E13 hubs add strength for aggressive riding, paired with Maxxis DoubleDown tyres for traction you can trust. The OneUp cockpit and dropper post complete a build focused on confidence, precision, and capability.
For riders who crave big-mountain challenges and want a bike that thrives in demanding environments, the Bullit stands ready. Bringing you up the mountain efficiently so you can enjoy every metre on the way back down.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Carbon C MX 170mm Travel, 4-Bar |
| Fork | FOX 38 Float Performance, Grip, 170mm |
| Rear Shock | FOX Float X Performance, 205x65 |
| Headset | Cane Creek 10 IS Integrated Headset |
| Stem | OneUp Stem, 42mm |
| Bars | OneUp Aluminum Bar, 35mm Rise, 800mm |
| Brake Lever | SRAM Maven Base |
| Rear Mech | SRAM 90 Eagle T-Type, 12spd |
| Shifters | SRAM 90 Eagle T-Type, Single Click, 12spd |
| Speed | 12 |
| Rims | Reserve 30|HD AL |
| Front Hub | E13 SL, 15x110, 6-Bolt, 32h |
| Rear Hub | E13 SL E-Spec, 12x148, XD, 6-Bolt, 32h |
| Front Tyre | Maxxis Assegai 29"x2.5", 3C, MaxxGrip, Double Down |
| Rear Tyre | Maxxis Minion DHRII 27.5x2.5, 3C MaxxTerra, DoubleDown |
| Seat Post | OneUp Dropper Post, 31.6 |
| Saddle | SDG Bel-Air V3, Max Lux-Alloy |
| Chainset | E13 Helix eSpec, 155mm |
| Chain | SRAM GX Eagle T-Type, Flattop, 12spd |
| Cassette | SRAM XS 1275 Eagle T-Type, 10-52t |
| Battery Size (WH) | Bosch PowerTube Battery 600Wh |
| Motor | Bosch Performance CX BDU38 |
| User Interface | Bosch |
Electric Bike Bike Size Chart
|
Height |
e Bike Size |
e Road Bike Size |
e Mountain Bike Size* |
|
4’8” – 5’1” 143 – 155 cm |
XXS |
44 cm |
13” (33 cm) |
|
5’1” – 5’4” 155 – 163 cm |
XS |
48 cm |
15” (38 cm) |
|
5’4” – 5’7” 163 – 170 cm |
S |
51 cm |
16” (41 cm) |
|
5’7” – 5’10” 170 – 178 cm |
M |
54 cm |
18” (46cm) |
|
5’10” – 6’0” 178 – 183 cm |
L |
56 cm |
19” (48cm) |
|
6’0” – 6’3” 183 – 191 cm |
XL |
58 cm |
20” (51 cm) |
|
6’3” – 6’5” 191 – 196 cm |
XXL |
60 cm |
21” (53 cm) |
|
6’5” – 6’9” 196 – 205 cm |
XXXL |
62 cm |
22” (56 cm) |
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimeters for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but is like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the e mountain bike column.
See our bike size guide for more on bike sizing
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Santa Cruz Bullit 4 Carbon C - 90 2026 - Electric Mountain Bike
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations on any in stock bike (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
We offer a fast, high-quality delivery service with flexible options to suit your schedule - including free delivery* over £30, next day delivery, Click & Collect, and now 24/7 InPost locker delivery for qualifying orders. Learn more about InPost
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 90 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.