Roxform Venturis Electric Mountain Bike Mid-Drive Motor 250W
Roxform Venturis Electric Mountain Bike Mid-Drive Motor 250W
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Built to push further, ride harder
The Roxform Venturis steps up the performance with a more aggressive trail focus, giving riders the confidence to tackle tougher terrain and longer rides. With powerful assistance, stable geometry, and a choice of wheel sizes, it’s built for control, traction, and progression.
Top Features at a Glance
- High-capacity 460.8Wh battery – extended range for demanding rides
- 80Nm mid-drive motor – strong, consistent assistance
- 27.5” or 29” wheels – tailored handling for your riding style
- Trail-focused geometry – stable and responsive
- Suspension fork – improved control over rough ground
- Shimano drivetrain – smooth shifting under load
- Disc brakes – reliable braking performance
Sizing


Tip: Choose 27.5" for a more agile feel, or 29" for extra stability and rollover on rougher terrain.
Specifications
Electrics
Maximum Range: 40 miles / 65 km (Range depends on rider weight, hills, wind, tyre pressure, temperature, and assistance level)
Recharge Time: 4–6 hours
Maximum Assisted Speed: 15.5mph / 25kmh
Motor Bafang M400 Mid-Drive 36V 250W
Motor Torque: 80Nm
Battery LG Li-ion 36V 12.8Ah 460.8Wh
Battery Type: Integrated removable battery
Display Bafang DP C07 Display, 5 assist levels
Frameset
Frame Alloy
Fork Suntour XCM30 HLO Suspension fork
Colours Black / Dark Blue
Drivetrain & Brakes
Gears Shimano Deore 10-speed
Cassette Shimano 11-36T
Crankset 38T, 170 mm
Chain Shimano HG-54
Brakes Shimano MT200 Hydraulic Disc
Wheels & Tyres
Wheel Size: 27.5" / 29"
Tyres Maxxis Ardent 27.5/29x2.25
Weight
Weight: 21kg + 2kg battery
Maximum Load: 125kg
Kickstand: Yes
Warranty 2 years
- 2-year warranty covering the frame, motor, battery, and electrical components (e.g. display, throttle).
- 1-year warranty for the charger, lights, and non-wear mechanical parts.
The warranty does not cover:
- Damage from misuse, neglect, or lack of maintenance
- Modifications, paint, or graphics
- Wear-and-tear components such as tyres and brake pads
To activate your 2-year warranty, please email us at support@straightspoke.com
Assembly video
Delivery
Free UK mainland delivery on all orders over £500 within 3 - 5 working days with full Pre Delivery Inspection (PDI) checks carried out. Off mainland delivery is also available and we quote on request.
Cargo models delivery time varies depending on distance from our warehouse, as we ship these using our own fleet, rather than partner couriers, and we do our best to minimise environmental impact by grouping orders per geographical area. Timeframe for each order agreed upon directly with our UK customer service team, with regular updates communicated.
For the purposes of clarity, Saturday and Sunday, as well as any UK national holidays & bank holidays are not classed as working days. Orders placed on weekends are processed on the next working day.
Please ensure that you are available to receive your order when a delivery attempt is made.
We are always happy to answer questions before or after ordering — our priority is to ensure peace of mind from checkout to delivery.
Returns
Our policy lasts 30 days from when you receive your order. If 30 days have gone by since you received your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it, in the original packaging, with all tags still attached, and returned within 10 days from when you notify us that you wish to cancel your order and return your purchase. Please do not attach labels or tape directly to the product packaging — only to the external shipping package. If the items do not meet these criteria, we reserve the right to refuse the return or apply a reduced refund amount.
Please note that shipping charges apply to refund upon return of your item, and any damage will also result in reduced refund. Returns must be packaged securely. Any damages during return transit due to improper packaging may result in additional charges. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Defective items can be returned within 30 days of delivery at no cost to the customer. After inspection at our warehouse to confirm the defect, a full refund will be issued or an exchange offered should customers choose. Refunds will be processed within 14 business days after a defect has been verified for delivered items. Please inspect your order upon receipt and contact us within 48 hours if the item is defective, damaged or if you receive the wrong item.
FAQ
FAQ
E-Bikes
Is it legal to ride electric bikes on the roads in the UK?
We sell only road legal e-bikes, which generally refer to electrically assisted pedal cycles with an electric motor power output of maximum 250 watts, reaching a maximum speed of 15.5 mph when the motor is engaged. Any bikes exceeding these numbers will be subject to regulations.
Is it safe to ride an electric bike in the rain?
Yes, the e-bikes we sell are safe for riding in the rain and going through puddles. Please take care with electrical parts when cleaning — power washers are not advised for any bike.
Can I ride my e-bike like a regular bicycle?
Yes, electric bikes can be used as conventional push bikes, engaging the motor for assistance only when needed — such as climbing a hill.
Do I have to remove the battery for charging?
Please refer to individual product descriptions. If in doubt, drop us a message.
Can I ride an electric bike on the roads if I don't have a driver's licence?
Yes, anyone over 14 years of age is allowed to ride road legal models of e-bikes on roads without a licence, road tax or registration.
Trampolines
What trampoline sizes do you offer?
We stock a wide range of trampolines from compact 7ft x 5ft models up to large 14ft x 8ft rectangular options, as well as popular round sizes including 8ft, 10ft, 12ft, 13ft, and 14ft. Whether you have a small garden or a large outdoor space, we have a size to suit.
What is the difference between Comfort, Premium, First Class, and Royal Baseground editions?
Our Salta trampoline range is tiered by build quality and features. The Comfort Edition is our entry-level range offering great value. The Premium Edition steps up with enhanced padding and frame quality. The First Class Edition is our top above-ground model with superior springs and safety features. The Royal Baseground range is designed to sit at ground level, offering a sleek, low-profile look and added safety — ideal for younger children.
What is an InGround trampoline?
InGround trampolines are installed flush with the ground, sitting in a dug-out pit in your garden. They offer a cleaner aesthetic and a lower fall height, making them a popular choice for families. Please note that installation requires ground preparation.
Do your trampolines come with an enclosure?
Most of our trampolines include a safety enclosure net as standard. Royal Baseground models without enclosure are also available. Please check individual product listings for details.
Do you sell trampoline accessories?
Yes — we stock weather covers in a range of sizes to protect your trampoline year-round, trampoline ladders for easy access, and goal sets in small, medium, and large sizes for added fun. A tie-down kit is also available for securing your trampoline in windy conditions.
What age and weight limits apply to your trampolines?
Age and weight limits vary by model. Please refer to the individual product description for specific guidance. As a general rule, Royal Baseground and InGround models are well-suited to younger children due to their lower height.
Kids' Outdoor Toys & Ride-Ons
What age ranges are your kids' electric ride-ons and scooters suitable for?
Our AIYAPLAY range covers a broad age span. Electric ride-on cars are suitable for ages 3–8, electric motorbikes for ages 8–12, and electric scooters for ages 6–14 depending on the model. Please check individual product listings for the recommended age range.
Are the kids' electric vehicles safe for outdoor use?
Yes, all AIYAPLAY ride-ons and scooters are designed for outdoor use and feature safety-focused designs including speed limits, brakes, and LED lights. Always supervise young children during use.
What voltage are the kids' ride-on cars and motorbikes?
We stock both 12V and 24V models. The 12V models are suited to younger children (ages 3–8), while the 24V motorbike is designed for older children (ages 8–12) and offers greater power and speed. Full specifications are listed on each product page.
Do you sell sandpits?
Yes — we offer a range of AIYAPLAY and Outsunny wooden sandpits and sandboxes, including models with canopies, seats, storage, and fun themed designs like pirate ships. They are suitable for outdoor garden use and ideal for children aged 3 and up.
Garden Storage & Sheds
What materials are your garden sheds made from?
We stock both metal (galvanised steel) and plastic garden sheds from Outsunny. Metal sheds offer durability and a traditional look, while plastic sheds are lightweight, rust-proof, and low maintenance.
Do your sheds come with a floor?
Some models include a built-in floor, while others do not. Please check the individual product listing to confirm whether a floor is included before purchasing.
Do I need to assemble the shed myself?
Yes, our sheds are supplied flat-packed and require self-assembly. Full instructions are included. If you have any questions during assembly, please don't hesitate to get in touch.
Camping & Tents
How many people do your tents accommodate?
Our Outsunny tent range covers 2-person dome tents right up to 5–6 person tunnel tents. We also stock inflatable air tents with 2 bedrooms suitable for up to 4 people. Please refer to individual product listings for capacity details.
Are your tents waterproof?
Yes — our inflatable and tunnel tents feature a 3000mm waterproof rating, making them suitable for UK weather conditions. Our pop-up beach tents offer UPF15+ sun protection. Always check the product specification for the relevant waterproof rating.
What is an inflatable tent and how does it work?
Inflatable tents use air beams instead of traditional poles. Simply connect the included pump, inflate the beams, and your tent is ready in minutes — no fiddly poles required. They are robust, easy to pitch, and ideal for family camping trips.
Orders & Payment
What payment options do you offer?
All available payment options are visible during checkout.
Can I still use my discount code after I have completed my order?
Discount codes can only be applied before completing an order, during the checkout process.
Can I cancel an order I have already placed?
An order may be cancelled or amended before dispatch. After dispatch, the buyer will be liable for the return courier cost.
Delivery & Returns
What countries do you deliver to?
At this time we ship to UK addresses only.
Do you offer free delivery?
Yes, we offer free delivery on all products. All discounts are made clearly visible on our website and during the checkout process.
How long does delivery take?
Delivery times vary by product and are shown on each listing. Larger items may take longer due to specialist handling.
Can I return my order if I change my mind?
Yes, provided items are unused and in original packaging. Some exclusions may apply for assembled goods.
Do your products come with a warranty?
Yes. All items include a manufacturer warranty, with duration varying by product type.
Do your products come with instructions?
Yes. All items include assembly or usage instructions specific to the product type.
About Us
About Us
Straight Spoke is a year-round family adventure store built to help people get outdoors, stay active, and enjoy life together.

Our Story
The idea for Straight Spoke started with a simple frustration — finding well-designed, practical cycling products that actually suited real people, not just specialist riders.
As cycling enthusiasts ourselves, we experienced first-hand how powerful electric bikes could be in everyday life. What started as commuting and leisure soon became something bigger: a way to explore more, move more, and enjoy the outdoors more often.
When we moved to Cambridge, UK that idea grew even stronger. Cycling wasn’t just transport there — it was a way of life. Bikes filled every street, path, and green space. It felt natural to build something within that culture.

So we did.
We started with e-bikes, with a particular focus on accessible, low step-through small frames — because they were surprisingly hard to find, yet essential for so many riders. From there, the range naturally expanded to include solutions for different riders, different families, and different stages of life.
Eventually, that thinking extended beyond cycling entirely.
If movement is good, and outdoor time is better, then why stop at bikes?
Our Journey
🚲 2024 | The Beginning
Straight Spoke started with a passion for cycling and a belief that electric bikes could help more people enjoy the outdoors, commute differently, and travel further with confidence. Our first collection focused on adult e-bikes, carefully selected to suit a wide range of riders and lifestyles.

🚴 2025 | Growing the Family
As our community grew, so did our range. We introduced kids' bikes and ride-ons, helping younger adventurers discover the freedom, confidence, and fun that comes with life on two wheels. What began as a cycling store was becoming a family destination.

🌳 2026 | Ride. Play. Explore.
In 2026, we expanded beyond cycling and embraced a bigger vision: active family living. Trampolines, climbing frames, and camping gear joined our range, bringing even more ways for families to stay active, play outdoors, and create lasting memories together.

✨ The Future
We're just getting started.
Our goal is to build the UK's favourite year-round family adventure store, continually adding new ways to help families get outdoors, stay active, and enjoy more time together.
The path ahead is full of possibilities, the journey continues...

Our Vision
We believe family life is better when it’s active, shared, and outdoors.
Our long-term vision is a world where everyday leisure is less screen-focused and more movement-led — where gardens become play spaces, weekends become mini-adventures, and activity becomes part of normal life again.
We care about practical sustainability too. Many of our products support lower-impact transport, healthier lifestyles, and longer-term wellbeing — for both people and the environment.
But above all, we care about simple things: getting outside, staying active, and doing it together.

Why Choose Straight Spoke
We’re straightforward by name and by nature.
We believe buying online should feel clear, honest, and human. No noise, no confusion — just well-chosen products that genuinely fit real family life.
As a family-run business, we understand that everyone’s needs are different. A lightweight step-through e-bike for easy city travel. A stable all-terrain bike for weekend exploring. A safe first bike for a child. Or a trampoline that turns a garden into a favourite place on earth.
Different people. Different stages. One shared idea: move more, enjoy more, together.

Straight Spoke is no longer just an e-bike store. It’s a growing world of active family living.
Connect With Us
We’re grateful you’re here and exploring our store. If you have any questions about products, sizing, or choosing the right setup for your family, we’re always happy to help.
📞 0333 0505 707
📧 info@straightspoke.com
Or write to us at:
The Keep, Creech Castle, Taunton TA1 2DX
FRUITFUL RETAIL LTD (Company No. 15672371)

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Customer Testimonials ⭐ ⭐ ⭐ ⭐ ⭐
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Nalini S
Very friendly and helpful, as I was struggling to figure out the right model and size for me, so we compared a few products together. All questions answered with patience and understanding for my needs. Highly recommended!
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Poppy V
Great first impression! I’ve been browsing around for a new electric bike and came across this store. The website’s super easy to use and I reached out with a couple of questions - quick replies and really knowledgeable.
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Gary S
Super helpful team and easy-to-use site! The website is clean and easy to navigate, with all the info I need right there. I had a few questions and reached out to customer service who got back to me quickly and were super friendly and helpful.



