2026 Rail+ 8 Gen 5 Full Suspension Electric Mountain Bike
Fully assembled, tuned, and test-ridden—ready to ride at pickup from any DFW Bike Mart location.
Expected to ship within 3 days
Professionally built and test-ridden before it ships. Arrives mostly assembled with just minimal setup needed. See Reassembly Instructions
Delivered fully assembled and tuned by Bike Mart—ready to ride right at your doorstep within 10 miles of any DFW location.
Ship
Get your bike or equipment delivered to your home directly from Bike Mart via our FedEx or USPS Carrier partners. Adult signature is required for all bike deliveries and for equipment & gear deliveries over $500.
For orders that include a bike, it will be professionally pre-built and shipped to your home with minimal assembly needed. While we try to make it as easy as possible, basic mechanical skills and proper tools are required. For orders that include a frameset please visit our support center to make sure you have the specialty tools and skills required.
If you decide to take your bike to a local retailer for assembly, additional fees will apply.
Pickup
We’ve made it easier than ever to get the gear and bikes you love—fast. With our Buy Online, Pick Up In Store (BOPIS) option, you can shop online and pick up your items at your convenience from any of our six DFW locations.
The best part about picking up at a Bike Mart location is that you get the same high quality service with the convenience of having the exact bike or part.
Bikes / Car Racks will be assembled and installed at no extra charge
Delivery
When you select "Home Delivery" at checkout. Your bike will be professionally assembled and the closest Bike Mart store will call you to schedule the delivery.
We offer home delivery for bike purchases only within 10 miles of a Bike Mart location. Contact us if you live beyond 10 miles and we can discuss more options. Additional fees may apply.
In stock bikes will be delivered within 7 days. Warehouse bikes will delivered within 14 days*.
2026 Rail+ 8 Gen 5 Full Suspension Electric Mountain Bike
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Bosch Performance Line CX motor: 100Nm upgrade ready
Bosch Performance Line CX sets the standard for eMTB performance with 85Nm of torque out of the box, but can be tuned all the way up to 100Nm and 750 watts of power using the Bosch eBike Flow app. The Bosch Smart system also has intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain. *O aplicativo eBike Flow não está disponível no Brasil.
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New RIB 2.0
Removable Integrated Battery (RIB 2.0) makes it easy to remove your battery for more convenient charging or traveling, and you don't have to worry about dropping it thanks to a secondary safety catch.
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Bosch Mini Remote
The compact, ergonomic Mini Remote lets you easily change assist level, activate Walk mode, or turn on optional lights, all without moving your hand off the handlebar. Plus, it's wireless and connects with your System Controller via Bluetooth
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Mixed wheel size
You get a 29" front wheel for monster truckin' over stuff, with a smaller 27.5" wheel out back for getting rowdy.
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Adjust the suss for full send
Adjust leverage rate with just a flip of a chip. Ride it in the Less progressive setting for a plusher feel perfect for rugged trails with square-edge bumps. Flip it to More progressive when you're hitting big features and don’t want to bottom-out, or when you want to run a coil shock.
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Bosch Kiox 400C display
The Bosch Kiox 400C integrates perfectly into the top tube of your bike and displays all the info you need. This display is compatiable with the Bosch eBike flow app and features a USB-C charging socket to turn your bike into a power bank.
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Active Braking Pivot
Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.
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A better way to produce aluminum
Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.
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Bosch eBike Flow app
The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motor's assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. There's even handy features like navigation and service reminders.
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Shimano XT
Shimano XT is the original mountain bike groupset and trusted by generations of mountain bikers around the world. Whatever the trail, wherever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.
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Compliant with leading safety regulations
The e-systems on Trek and Electra e-bikes are third-party tested to meet the latest e-bike safety regulations, including the stringent UL 2849 certification — so all you have to worry about is where your e-bike will take you next.
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You almost forgot your pedals
This bike doesn’t come with pedals because you'll have a better ride if you choose your own. Explore the pedal guide to find the best pedals for your riding style. Reach for flat pedals for simple versatility or go for clipless MTB pedals if you want control & efficiency.
Overview
Overview
Technical Specifications
Technical Specifications
| Frame | Alpha Platinum Aluminum, Removable Integrated Battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9mm seat tube, ABP, UDH, Boost148, 12 mm thru axle, 160 mm travel |
| Fork | RockShox ZEB Select, DebonAir spring, Charger RC damper, tapered steerer, 44mm offset, Boost110, Maxle Stealth, 160mm travel |
| Shock | RockShox Super Deluxe Select RT, 205mm x 65mm |
| *wheel front | Size: S Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5''Size: M, L, XL Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' |
| Wheel rear | Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano Micro Spline freehub, Boost148, 12mm thru axle, 27.5'' |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| *tire | Size: S, M, L, XL Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 27.5x2.50''Size: M, L, XL Bontrager Brevard Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.50'' |
| Tire part | Bontrager TLR sealant, 6oz |
| Max tire size | Frame: 27.5x2.60\, Fork: See manufacturer |
| Battery | Bosch PowerTube 800Wh, smart system |
| Charger | Bosch standard 4A, 110V, smart system |
| Controller | Bosch Kiox 400C, mini remote |
| Motor | Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC) |
| E-bike classification | Class 1 |
| Shifter | Shimano SLX M7100, 12 speed |
| Rear derailleur | Shimano XT M8100, long cage |
| Crank arm | E*thirteen E*spec Plus, 160mm length |
| Cassette | Shimano Deore M6100, 10-51, 12 speed |
| Chain | Shimano SLX M7100, 12 speed |
| Pedal | VP-536 nylon platform |
| Max chainring size | 1x: 36T |
| Saddle | Bontrager Verse P3, steel rails |
| *seatpost | Size: S Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 410mm lengthSize: M, L, XL Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm lengthSize: L, XL Bontrager Line Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 515mm length |
| Handlebar | Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Stem | Bontrager Elite, 35mm, 0 degree, 45mm length |
| Headset | Integrated cartridge bearing, 1-1/8'' top, 1.5'' bottom, angle adjust cup compatible |
| Brake | SRAM DB 8 4-piston hydraulic disc |
| Brake rotor | SRAM CenterLine, 6-bolt, round edge, 200mm |
| Rotor size | Max brake rotor sizes - Frame: 220mm, Fork: see fork manufacturer |
| Weight | M - 25.08 kg / 55.3 lbs (with TLR sealant, no tubes) |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
Parts are subject to change without notice. Chat with us if you have any questions.
Geometry
Geometry
All measurements provided in cm unless otherwise noted.
| Frame size number | 15.5" | 15.5" | 17.5" | 17.5" | 19.5" | 19.5" | 21.5" | 21.5" |
| Frame size letter | S | S | M | M | L | L | XL | XL |
| Geometry position | High | Low | High | Low | High | Low | High | Low |
| Wheel size | 27.5" | 27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" | 29"/27.5" |
| A — Seat tube | 38.0 | 38.0 | 41.0 | 41.0 | 43.5 | 43.5 | 47.0 | 47.0 |
| B — Seat tube angle (degrees) | 75.3° | 74.8° | 75.3° | 74.8° | 75.2° | 74.8° | 75.2° | 74.8° |
| Effective seat tube angle (degrees) | 77.9° | 77.4° | 77.7° | 77.2° | 77.5° | 77.0° | 77.4° | 76.9° |
| C — Head tube length | 10.0 | 10.0 | 10.0 | 10.0 | 12.0 | 12.0 | 14.5 | 14.5 |
| D — Head angle (degrees) | 65.0° | 64.5° | 65.0° | 64.5° | 65.0° | 64.5° | 64.9° | 64.5° |
| E — Effective top tube | 56.2 | 56.3 | 59.1 | 59.2 | 63.9 | 63.9 | 67.0 | 67.0 |
| F — Bottom bracket height | 34.4 | 33.8 | 34.5 | 33.8 | 34.5 | 33.8 | 34.5 | 33.8 |
| G — Bottom bracket drop | 1.2 | 1.8 | 1.8 | 2.4 | 1.8 | 2.4 | 1.7 | 2.4 |
| H — Chainstay length | 44.6 | 44.8 | 44.6 | 44.8 | 44.6 | 44.8 | 44.6 | 44.8 |
| I — Offset | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| J — Trail | 11.9 | 12.2 | 12.7 | 13.1 | 12.7 | 13.1 | 12.7 | 13.1 |
| K — Wheelbase | 120.1 | 127.8 | 122.9 | 123.0 | 127.7 | 127.8 | 131.3 | 131.4 |
| L — Standover | 76.7 | 76.2 | 78.4 | 77.8 | 78.5 | 77.9 | 80.4 | 79.8 |
| M — Frame reach | 43.5 | 43.0 | 45.5 | 45.0 | 49.5 | 49.0 | 52.0 | 51.5 |
| N — Frame stack | 59.8 | 59.4 | 63.1 | 62.7 | 64.9 | 64.5 | 67.2 | 66.7 |
This Geometry Chart is provided by the Manufactuer. Chat with us if you have any questions.
Sizing
Sizing
| size | inches | cm |
|---|---|---|
| S | 5'1" - 5'5" | 155 - 165 |
| M | 5'5" - 5'10" | 165 - 177 |
| L | 5'10" - 6'2" | 177 - 188 |
| XL | 6'2" - 6'5" | 188 - 195 |
Sizing to be used as a reference only. Chat with us if you have any questions.
