Availability
0% Finance - UK ONLY
THIS MODEL IS NO LONGER IN PRODUCTION
The Roadrat: Swift and Rugged Flat Bar Flyer
Road, Gravel, Commute, Adventures
Faster than a mountain bike on the road, way more fun and versatile than a traditional road bike, the Roadrat is your perfect 'other' bike. A Life Bike. Cruise into work or head for the hills. Go on holiday, or to the shops. Go on adventures, or get some headspace.
It was born of a desire for something swift and rugged to take on the rapidly crumbling tarmac of the urban landscape, but also up for disappearing for a few days with nothing but your sleeping bag and mat for company. We melded our iconic mountain bike fit and handling with fast road features and rigid forks.
All Cotic Life Bikes, including the Roadrat have big clearances for big tyres. We supply the bikes with big volume 700x37c slicks, or the latest WTB Road Plus 650b x 47c tubeless tyres. They roll fast, float over the potholes in the road and bumps in the trail. They give you comfort, control and a whole tonne of fun.
The bike is disc brake only, because we have always considered disc brakes to be the best, strongest, safest option for road or offroad riding. It's in the DNA of the Roadrat, right from the original 2006 version - one of the first road bikes to feature disc brakes.
Our brand new RB4 front fork moves to aluminium/carbon hydrid construction to keep the weight down and comfort high. A 12mm thru axle keeps everything accurate and together with the strongest of hydraulic brakes.
All the fittings are there for two bottles, rear rack, and full mudguards. Cotic Dogsbody track end dropouts let you do almost anything; regular gears, fixed, singlespeed or hub gear. Why limit yourself and your bike to just one thing?
Colours are Gloss Orange, or Gloss Aqua.
Following our customers' feedback, the Roadrat4 now features a tapered head tube with integral headset cups running into our brand new RB4 aluminium/carbon tapered steerer fork. Super clean, smooth looks. Light, comfortable and accurate ride from the carbon fork legs and 12mm thru axle hub interface. Tapered steerer means greater handling precision and many more options should you wish to change your fork at a later date.
The small and medium frames now feature shorter seat tubes and lower top tubes for better stand over clearance on those sizes.
Cotic frames are designed, developed, engineered and tested entirely by us at our base in the Peak District, near Sheffield in the UK. Our founder - Cy Turner - is the lead designer and engineer, and our frames are rigorously ride tested by everyone at Cotic, and our Race Team. They are fully certified and lab tested in excess of the requirements of ISO4210 safety standards.
This frame is hand made in Taiwan by our specially selected framebuilder, chosen because of their vast experience with our favourite materials, and their top quality finish. They are the best in Taiwan for what we need.
Each frame is dip coated inside and out with zinc phosphate before painting, to prevent corrosion and ensure the best paint finish. After we've agonised over the colours, designs and decals the frames are painted to the highest quality including a protective clear coat, before extensive QC by our agent in Taiwan. Once the frames reach us in the UK, we carry out further QC, and prep the frames for headset and bottom bracket installation.
As always, all complete bikes are built to order by us here in the Peak District, to the exact spec of your choice. We build your bike for you.
- Custom butted Cotic Fe Cromoly frame with Ovalform top tube. Tough, durable, clean, graceful.
- A mount for everything: Racks, mudguards, bottles, discs.
- Cotic RB4 fork: Tapered aluminium steerer for improved handling, with carbon fork legs for reduced weight and improved ride comfort. New industry standard 12mm thru axle and flat mount front brake interfaces make them futureproof. Massive clearance for up to 700x47 or 650x47 tyres with mudguard mounting for keeping clean and dry.
- Super versatile Dogsbody dropouts with solid mech hanger and chainstay disc mount means a bit of what you fancy. Gears, discs, SS, hub gear, fixed, whatever.
- Huge tyre clearance; big road or cyclo-cross tyres 700x42, or the latest Road Plus wheels up to 650b x 47 for ultimate tubeless tyre float and grip over rough roads.
- 68mm threaded BB shell with clearance for pretty much any chainset you like. Only super narrow track setups won't fit. Single, Road Standard or Compact, Triple, all good on the Roadrat.
- Optimised flat bar handling and rider fit. No toe overlap, no twitchy handling, no back ache, no worries!
The chart is a guide to frame size for the latest version of the ROADRAT: Ultra Compact Geometry - Road means that the frames are low and long. You'll probably need a 330mm seatpost due to the compact sizing, and as a guide, the top tube lengths are identical to our MTB frames if you're coming over from our mountain bikes. You lot are just too different to say for sure, so drop us a line
at size@cotic.co.uk and we'll be happy to discuss set up based on what you're riding at the moment.
dimensions in mm
Frame Size
Small
Medium
Large
Seat Tube (centre-top)
46cm
50cm
54cm
Top Tube Length (Effective)
575mm
591mm
610mm
Reach
399mm
411mm
427mm
Stack
579mm
589mm
598mm
Chainstay Length
425mm
425mm
425mm
Wheelbase
1032mm
1048mm
1067mm
Head Angle
72°
72°
72°
Seat Angle
73°
73°
73°
BB Drop
60mm
60mm
60mm
Head Tube Length
160mm
170mm
180mm
Usual Height Range
up to 175cm
173cm - 180cm
180cm - 191cm
Stem Length
90mm-120mm
90mm-120mm
90mm-120mm
Forks included with frame:
Fork Length
400mm
400mm
400mm
Fork Offset(centre-top)
45mm
45mm
45mm
dimensions in inches
Frame Size
Small
Medium
Large
Seat Tube (centre-top)
18.1"
19.7"
21.3"
Top Tube Length (Effective)
22.6"
23.3"
24.1"
Reach
15.7"
16.2"
16.8"
Stack
22.8
23.2"
23.5"
Chainstay Length
16.7"
16.7"
16.7"
Wheelbase
40.6"
41.3"
42"
Head Angle
72°
72°
72°
Seat Angle
73°
73°
73°
BB Drop
2.3"
2.3"
2.3"
Head Tube Length
6.3"
6.7"
7.1"
Usual Height Range
up to 5'9"
5'8" - 5'11"
5'10" and over
Stem Length
3.5"-4.7"
3.5"-4.7"
3.5"-4.7"
Forks included with frame:
Fork Length
15.75"
15.75"
15.75"
Fork Rake(centre-top)
1.75"
1.75"
1.75"
Seatpost diameter: 27.2mm (330mm long minimum)
Seatpost clamp: 29.8mm or 30.0mm (bolt up clamp is included)
Front Mech: 28.6mm (bottom pull)
Bottom Bracket width: 68mm
Bottom Bracket thread: Conventional English/BSA
Headset: IS41/28.6 Upper Cup, IS52/40 Lower Cup, integral taper steerer
Front hub: 12mmx100 thru axle
Rear Hub: 135 QR
Front Disc Mount: Flat Mount
Rear Disc Mount: International Standard (IS)
Complete Headsets Life Bike Tapered HeadtubeCane Creek Headset 40 Series IS41/IS52 £45 Hope 7J for tapered steerer Life Bike (black) £80 Hope 7J for tapered steerer Life Bike (orange) £80 Hope 7J for tapered steerer Life Bike (purple) £80 Hope 7J for tapered steerer Life Bike (blue) £80 Hope 7J for tapered steerer Life Bike (red) £80 Hope 7J for tapered steerer Life Bike (silver) £80 Hope 7J for tapered steerer Life Bike (bronze) £80
(headset prices include fitting)
0% Finance - UK ONLY
THIS MODEL IS NO LONGER IN PRODUCTION
The Roadrat: Swift and Rugged Flat Bar Flyer
Road, Gravel, Commute, Adventures
The Roadrat: Swift and Rugged Flat Bar Flyer
Road, Gravel, Commute, Adventures
Faster than a mountain bike on the road, way more fun and versatile than a traditional road bike, the Roadrat is your perfect 'other' bike. A Life Bike. Cruise into work or head for the hills. Go on holiday, or to the shops. Go on adventures, or get some headspace.
It was born of a desire for something swift and rugged to take on the rapidly crumbling tarmac of the urban landscape, but also up for disappearing for a few days with nothing but your sleeping bag and mat for company. We melded our iconic mountain bike fit and handling with fast road features and rigid forks.
All Cotic Life Bikes, including the Roadrat have big clearances for big tyres. We supply the bikes with big volume 700x37c slicks, or the latest WTB Road Plus 650b x 47c tubeless tyres. They roll fast, float over the potholes in the road and bumps in the trail. They give you comfort, control and a whole tonne of fun.
The bike is disc brake only, because we have always considered disc brakes to be the best, strongest, safest option for road or offroad riding. It's in the DNA of the Roadrat, right from the original 2006 version - one of the first road bikes to feature disc brakes.
Our brand new RB4 front fork moves to aluminium/carbon hydrid construction to keep the weight down and comfort high. A 12mm thru axle keeps everything accurate and together with the strongest of hydraulic brakes.
All the fittings are there for two bottles, rear rack, and full mudguards. Cotic Dogsbody track end dropouts let you do almost anything; regular gears, fixed, singlespeed or hub gear. Why limit yourself and your bike to just one thing?
Colours are Gloss Orange, or Gloss Aqua.
Following our customers' feedback, the Roadrat4 now features a tapered head tube with integral headset cups running into our brand new RB4 aluminium/carbon tapered steerer fork. Super clean, smooth looks. Light, comfortable and accurate ride from the carbon fork legs and 12mm thru axle hub interface. Tapered steerer means greater handling precision and many more options should you wish to change your fork at a later date.
The small and medium frames now feature shorter seat tubes and lower top tubes for better stand over clearance on those sizes.
Cotic frames are designed, developed, engineered and tested entirely by us at our base in the Peak District, near Sheffield in the UK. Our founder - Cy Turner - is the lead designer and engineer, and our frames are rigorously ride tested by everyone at Cotic, and our Race Team. They are fully certified and lab tested in excess of the requirements of ISO4210 safety standards.
This frame is hand made in Taiwan by our specially selected framebuilder, chosen because of their vast experience with our favourite materials, and their top quality finish. They are the best in Taiwan for what we need.
Each frame is dip coated inside and out with zinc phosphate before painting, to prevent corrosion and ensure the best paint finish. After we've agonised over the colours, designs and decals the frames are painted to the highest quality including a protective clear coat, before extensive QC by our agent in Taiwan. Once the frames reach us in the UK, we carry out further QC, and prep the frames for headset and bottom bracket installation.
As always, all complete bikes are built to order by us here in the Peak District, to the exact spec of your choice. We build your bike for you.
- Custom butted Cotic Fe Cromoly frame with Ovalform top tube. Tough, durable, clean, graceful.
- A mount for everything: Racks, mudguards, bottles, discs.
- Cotic RB4 fork: Tapered aluminium steerer for improved handling, with carbon fork legs for reduced weight and improved ride comfort. New industry standard 12mm thru axle and flat mount front brake interfaces make them futureproof. Massive clearance for up to 700x47 or 650x47 tyres with mudguard mounting for keeping clean and dry.
- Super versatile Dogsbody dropouts with solid mech hanger and chainstay disc mount means a bit of what you fancy. Gears, discs, SS, hub gear, fixed, whatever.
- Huge tyre clearance; big road or cyclo-cross tyres 700x42, or the latest Road Plus wheels up to 650b x 47 for ultimate tubeless tyre float and grip over rough roads.
- 68mm threaded BB shell with clearance for pretty much any chainset you like. Only super narrow track setups won't fit. Single, Road Standard or Compact, Triple, all good on the Roadrat.
- Optimised flat bar handling and rider fit. No toe overlap, no twitchy handling, no back ache, no worries!
The chart is a guide to frame size for the latest version of the ROADRAT: Ultra Compact Geometry - Road means that the frames are low and long. You'll probably need a 330mm seatpost due to the compact sizing, and as a guide, the top tube lengths are identical to our MTB frames if you're coming over from our mountain bikes. You lot are just too different to say for sure, so drop us a line at size@cotic.co.uk and we'll be happy to discuss set up based on what you're riding at the moment.
dimensions in mm
| Frame Size | Small | Medium | Large |
|---|---|---|---|
| Seat Tube (centre-top) | 46cm | 50cm | 54cm |
| Top Tube Length (Effective) | 575mm | 591mm | 610mm |
| Reach | 399mm | 411mm | 427mm |
| Stack | 579mm | 589mm | 598mm |
| Chainstay Length | 425mm | 425mm | 425mm |
| Wheelbase | 1032mm | 1048mm | 1067mm |
| Head Angle | 72° | 72° | 72° |
| Seat Angle | 73° | 73° | 73° |
| BB Drop | 60mm | 60mm | 60mm |
| Head Tube Length | 160mm | 170mm | 180mm |
| Usual Height Range | up to 175cm | 173cm - 180cm | 180cm - 191cm |
| Stem Length | 90mm-120mm | 90mm-120mm | 90mm-120mm |
| Forks included with frame: | |||
| Fork Length | 400mm | 400mm | 400mm |
| Fork Offset(centre-top) | 45mm | 45mm | 45mm |
dimensions in inches
| Frame Size | Small | Medium | Large |
|---|---|---|---|
| Seat Tube (centre-top) | 18.1" | 19.7" | 21.3" |
| Top Tube Length (Effective) | 22.6" | 23.3" | 24.1" |
| Reach | 15.7" | 16.2" | 16.8" |
| Stack | 22.8 | 23.2" | 23.5" |
| Chainstay Length | 16.7" | 16.7" | 16.7" |
| Wheelbase | 40.6" | 41.3" | 42" |
| Head Angle | 72° | 72° | 72° |
| Seat Angle | 73° | 73° | 73° |
| BB Drop | 2.3" | 2.3" | 2.3" |
| Head Tube Length | 6.3" | 6.7" | 7.1" |
| Usual Height Range | up to 5'9" | 5'8" - 5'11" | 5'10" and over |
| Stem Length | 3.5"-4.7" | 3.5"-4.7" | 3.5"-4.7" |
| Forks included with frame: | |||
| Fork Length | 15.75" | 15.75" | 15.75" |
| Fork Rake(centre-top) | 1.75" | 1.75" | 1.75" |
Seatpost diameter: 27.2mm (330mm long minimum)
Seatpost clamp: 29.8mm or 30.0mm (bolt up clamp is included)
Front Mech: 28.6mm (bottom pull)
Bottom Bracket width: 68mm
Bottom Bracket thread: Conventional English/BSA
Headset: IS41/28.6 Upper Cup, IS52/40 Lower Cup, integral taper steerer
Front hub: 12mmx100 thru axle
Rear Hub: 135 QR
Front Disc Mount: Flat Mount
Rear Disc Mount: International Standard (IS)
Complete Headsets Life Bike Tapered Headtube
| Cane Creek Headset 40 Series IS41/IS52 | £45 |
|---|---|
| Hope 7J for tapered steerer Life Bike (black) | £80 |
| Hope 7J for tapered steerer Life Bike (orange) | £80 |
| Hope 7J for tapered steerer Life Bike (purple) | £80 |
| Hope 7J for tapered steerer Life Bike (blue) | £80 |
| Hope 7J for tapered steerer Life Bike (red) | £80 |
| Hope 7J for tapered steerer Life Bike (silver) | £80 |
| Hope 7J for tapered steerer Life Bike (bronze) | £80 |
(headset prices include fitting)
