Trek Powerfly FS+ 6 Gen 4 - Nearly New – XL 2026 - Electric Mountain Bike
- The Powerfly FS+ gives you the powerful boost you crave on high alpine climbs, confident comfort on descents and a big battery for getting far out there
- Bosch's Performance Line CX motor delivers plenty of torque for steep, punchy climbs and is easy to control with the Purion 200 remote – plus you can customise it in the eBike Flow app
- Its RIB 2.0 removable integrated battery is easy to remove for travel and storage, and its virtually rattle-free while you ride
- You can customise the Powerfly for how and where you ride, with mounts for bags, lights and racks
- Want to ride even further? The Powerfly FS+ is compatible with Bosch PowerMore booster batteries, so you can explore from dawn to dusk
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, 34.9 mm seat tube, ABP, UDH, rack and mudguard mounts, Boost 148, 120 mm travel |
| Fork | Fox AWL Rail HD, Rail 2.0 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 180 mm direct mount, 130 mm travel |
| Rear Shock | Fox Float Rhythm, 2-position damper, 210x50 mm |
| Headset | FSA IS-2, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length |
| Bars | Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width |
| Front Brake | Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper // Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper |
| Rear Brake | Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper // Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper |
| Rear Mech | Shimano XT M8100, long cage |
| Shifters | Shimano SLX M7100, 12-speed |
| Speed | 12 |
| Rims | Bontrager Line TLR 30, Tubeless-Ready, 28-hole, Presta valve // Bontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve |
| Front Hub | Shimano TC500 alloy, CentreLock, 110x15 mm thru axle |
| Rear Hub | Shimano TC500 alloy, CentreLock, 148x12 mm thru axle |
| Front Tyre | Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" |
| Rear Tyre | Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" |
| Seat Post | Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 31.6 mm, 450 mm length |
| Saddle | Bontrager Verse P3, steel rails |
| Chain | Shimano Deore M6100, 12-speed |
| Cassette | Shimano Deore M6100, 10-51, 12-speed |
| Pedals | VP-536 nylon platform |
| Battery Size (WH) | Bosch PowerTube 800 Wh, smart system |
| Motor | Bosch Performance Line CX, 20 mph / 32 km/h max assist |
| User Interface | Bosch Purion 200 |
Typical Bike Size Chart
|
Height
|
Bike Size
|
Road Bike Size
|
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 centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Trek Powerfly FS+ 6 Gen 4 - Nearly New – XL 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.
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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.