Lowest1.00:1
Highest4.82:1
Total range482%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Uses front tire 700C×25; rear size isn’t listed.
Velopedia Bicycle Archive
1998 Burley Duet
Original specifications: Shimano Deore XT · 8-speed · mechanical rear derailleur · 700c wheels · 40.5 lb published weight.
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At a glance
Archive #71542- Model year
- 1998
- Category
- Tandem
- Original MSRP
- $2,200.00
- Sizes
- Captain 20.5"/stoker 18", captain 22"/stoker 19.5", captain 23.5"/stoker 21"
- Colors
- Hot rod red
- Weight
- 40.5 lb
- Geometry
- Legacy reference
- In this record
- 26 specifications · archived image · original MSRP · geometry
Model history 10 other years
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Compare side by side
Identification clues
1998 archived details
- Published colors
- Hot rod red
- Frame
- True Temper Tandem chromoly, Burley Exclusive
- Original equipment
- Tandem Mix
Clues, not proof of model year. Colors vary and components may have been replaced.
Original buildTrue Temper Tandem chromoly, Burley Exclusive · Tandem Mix · 700c wheels
Frameset
| Frame Construction | TIG-welded |
|---|---|
| Frame Material | True Temper Tandem chromoly, Burley Exclusive |
| Fork | Burley |
| Fork Material | True Temper Tandem chromoly, Burley-Exclusive, unicrown crown |
Drivetrain
| Component Group | Tandem Mix |
|---|---|
| Shifters | Shimano 105SC STI Dual Control |
| Front Derailleur | Shimano 105SC, bottom-pull/clamp-on 28.6mm |
| Rear Derailleur | Shimano Deore XT SGS |
| Crankset | Shimano Tandem, 30/42/53 teeth |
| Bottom Bracket | Burley Tandem precision sealed, 122mm spindle |
| BB Shell Width | 82mm Special Tandem |
| Rear Cogs | 8-speed, 11 - 30 teeth |
| Chain | Shimano CN-HG50, 1/2 x 3/32" |
| Pedals | Wellgo WPD-700 clipless |
Brakes
| Brakes | Shimano Deore LX M-System brakes, Shimano 105SC levers |
|---|
Cockpit & Contact Points
| Headset | 1 1/8" Tange-Seiki Avenger |
|---|---|
| Handlebar | Burley Racing, aluminum |
| Stem | Burley chromoly |
| Saddle | Vetta SL |
| Seatpost | Aluminum micro-adjust, 26.6mm diameter |
Wheels & Tires
| Hubs | Shimano Tandem HF-07 |
|---|---|
| Rims | Matrix Vapor, 48-hole |
| Spokes | Wheelsmith stainless steel, 2.0mm straight gauge |
| Spoke Nipples | Brass nipples |
| Front Tire | 700 x 25c Ritchey Tom Slick |
| Wheel Size | 700c wheels |
No specifications match. Try a component name or clear your search.
Geometry
Historical measurements. Frame size unknown.
Reference drawing
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurementsLegacy reference · 5 measurements
| Measurement | Legacy reference |
|---|---|
| Head-tube angle | 73° |
| Seat-tube angle | 73° |
| Chainstay / rear center | 438 mm |
| Wheelbase | 1730 mm |
| Fork offset / rake | 55 mm |
Frame size not recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
Shimano CN-HG50
1/2 x 3/32"
Retailer offers
SRAM PC-830 Chain One Color, 8 Speed
Replacement option
Shimano CN-HG50 on eBaySponsored links
700 x 25c Ritchey Tom Slick
Retailer offers
Vittoria Zaffiro Pro V Clincher Tire Black, 700x25
700x25c
Replacement option
Wellgo WPD-700 clipless
More parts (4)Fewer parts
Shimano Tandem
30/42/53 teeth
Shimano Deore XT SGS
Aluminum micro-adjust
26.6mm diameter
Shimano Tandem HF-07
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 700 x 25c Ritchey Tom Slick
- Drivetrain
- 8-speed
- Seatpost diameter
- 26.6 mm
- Bottom bracket / shell
- Burley Tandem precision sealed, 122mm spindle · 82mm Special Tandem
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: TIG-welded · Fork: Burley · True Temper Tandem chromoly, Burley-Exclusive, unicrown crown
Drivetrain
Check drivetrain wear →Archived: Group: Tandem Mix · Shifters: Shimano 105SC STI Dual Control · Front derailleur: Shimano 105SC, bottom-pull/clamp-on 28.6mm · Rear derailleur: Shimano Deore XT SGS · Crankset: Shimano Tandem, 30/42/53 teeth · Bottom bracket: Burley Tandem precision sealed, 122mm spindle · Rear cogs: 8-speed, 11 - 30 teeth · Chain: Shimano CN-HG50, 1/2 x 3/32"
Brakes
Inspect the brakes →Archived: Brakes: Shimano Deore LX M-System brakes, Shimano 105SC levers
Wheels and tires
Check wheels and tires →Archived: Wheel size: 700c wheels · Rims: Matrix Vapor, 48-hole · Hubs: Shimano Tandem HF-07 · Front tire: 700 x 25c Ritchey Tom Slick
Controls and contact points
Archived: Headset: 1 1/8" Tange-Seiki Avenger · Handlebar: Burley Racing, aluminum · Stem: Burley chromoly · Seatpost: Aluminum micro-adjust, 26.6mm diameter · Saddle: Vetta SL · Pedals: Wellgo WPD-700 clipless
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Market Snapshot
Checked Nov 5, 2026We may earn a commission from purchases through these eBay links.
Burley Duet Tandem Bike
New other (see details) · Fixed price · offers accepted · USD 400.00
Model year not confirmed
Burley Duet Tandem Bike Bicycle Built For Two!!!
Used · Fixed price · offers accepted · USD 249.99
Model year not confirmed
Model-family new asking$400.001 current asking price
Asking prices, not completed sales. Shipping and tax excluded.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.