Velopedia Bicycle Archive

2013 GT Zaskar 20

Original specifications.

Share owner experience

At a glance

Archive #9228306

Model year: 2013
Category: Kids
Colors: White
In this record: 18 specifications · archived image

Original build6061 Aluminum

Manufacturer catalog

Published sizes and colors

1 color

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published colors

White

Frameset

Frame Material	6061 Aluminum
Fork	Chromoly

Drivetrain

Shifters	SRAM X4
Front Derailleur	Shimano Acera
Rear Derailleur	SRAM X5
Crankset	SR Suntour SCT-JR 38/28t
Bottom Bracket	SR Suntour
Cassette	SRAM PG 830 11x32T
Rear Cogs	2x8 Speeds
Chain	KMC Z72
Pedals	GT Slim Line

Brakes

Brakes	Linear Pull

Cockpit & Contact Points

Headset	FSA TH-888
Handlebar	Alloy Flat Bar
Stem	Alloy
Saddle	All Terra XC
Seatpost	Alloy

Wheels & Tires

Front Tire	Kenda Small Block Eight 20x1.9

Gearing

Lower gears help on climbs. Higher gears suit higher speeds.

Published build38/28T · 11–32T

Lowest0.88:1 Highest3.45:1 Total range395%

Speed unavailable: wheel or tire size is missing or unclear.

Add your rear tire size to calculate speed

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 other gearing

Try your current gearingChanged tires or gears? Calculate your setup.

Your changes apply to this calculation. The archived build stays unchanged.

Gears Drivetrain

Front teeth Smallest rear teeth Largest rear teeth

Use up to three front tooth counts, separated by /. For one rear sprocket, enter the same count twice.

Rear tire

Rear tire marking

Apply the marking on your rear tire or edit its dimensions below. Older or fractional inch sizes need the ISO marking (e.g. 37-590).

Rim diameter (BSD, mm) Tire width (mm)

For 32-622, width is 32 mm and rim diameter is 622 mm. Use the rear tire on mixed-wheel bikes. Leave both fields empty to compare ratios only.

Cadence (RPM) Speed units

Gear, dimension and cadence changes update results automatically.

Gearing comparison
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

Original specifications

Chain · Original

KMC Z72

Search Amazon Search eBay

Retailer offers

SRAM PC-830 Chain One Color, 8 Speed

Replacement option

Competitive Cyclist ↗$11.00

Cassette · Original

SRAM PG 830 11x32t

Search Amazon Search eBay

Front tire · Original

Kenda Small Block Eight 20x1.9

Search Amazon Search eBay

More parts (5)Fewer parts

Brake pads · Original

Linear Pull

Search Amazon Search eBay

Front derailleur · Original

Shimano Acera

Search eBay

Rear derailleur · Original

SRAM X5

Search eBay

Shifters · Original

SRAM X4

Search eBay

Headset · Original

FSA TH-888

Search eBay

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: Kenda Small Block Eight 20x1.9
Bottom bracket / shell: SR Suntour

Equipment inspection checks 8 checks based on 4 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: 6061 Aluminum · Fork: Chromoly

Look for dents or shape changes and inspect the edges of welds around the head tube, bottom bracket, seat cluster and suspension mounts for hairline cracks.
Inspect the fork crown, blades, dropouts and visible steerer area. Check that it is straight, securely installed and free of cracks or impact damage.

Drivetrain

Check drivetrain wear →

Archived: Shifters: SRAM X4 · Front derailleur: Shimano Acera · Rear derailleur: SRAM X5 · Crankset: SR Suntour SCT-JR 38/28t · Bottom bracket: SR Suntour · Cassette: SRAM PG 830 11x32t · Rear cogs: 2x8 Speeds · Chain: KMC Z72

Shift through every available gear under light load. Hesitation, skipping or inconsistent indexing can reflect wear, damage, poor adjustment or mismatched replacement parts.
Measure chain wear with a compatible gauge and inspect chainring, cassette or freewheel teeth. A new chain does not rule out wear in the remaining drivetrain.
Turn the cranks slowly, feel for rough bearings and check for side-to-side play. Inspect crank arms, chainring bolts and pedal threads for looseness or damage.

Brakes

Inspect the brakes →

Archived: Brakes: Linear Pull

Inspect pads, cables and housings, then examine both rim braking surfaces for concavity, cracking or heavy wear. Confirm each caliper returns and centers correctly.

Controls and contact points

Archived: Headset: FSA TH-888 · Handlebar: Alloy Flat Bar · Stem: Alloy · Seatpost: Alloy · Saddle: All Terra XC · Pedals: GT Slim Line

Apply the front brake and rock the bike to check for headset play or notchiness. Inspect the stem, handlebar and clamp zones, then confirm every fastener and control is secure.
Check that the seatpost moves for adjustment and that the saddle, post and clamp hold securely without cracks, severe corrosion or damaged hardware.

Have you owned this model?Help document firsthand fit, ride and maintenance details that may no longer be available.

This archive record has limited published detail. Share what would help another rider understand how this model fit, rode and held up over time. Velopedia reviews every contribution before publication.

Display name Required Email address Required · private Ownership Required When or how long you owned it Required Frame size Required Primary type of riding Required Rider height Optional

Overall owner experience Required · at least 120 characters0 of 120 minimum characters Would you own one again? Optional

Add fit, maintenance and buyer detailsOptional · five additional fields

Fit and sizing observations Optional Long-term strengths Optional Problems or recurring maintenance Optional Parts replaced or upgraded Optional What a used buyer should inspect Optional

Your contribution goes directly to Velopedia’s private review queue. We’ll email an optional confirmation link plus a private edit and withdrawal link, but you do not need to confirm your email before an administrator can review or approve the submission.

Already contributed? Send me a fresh private edit link

For privacy, Velopedia shows the same confirmation whether or not an experience exists.

Checking current listings…

Find this bike on eBay

Search eBay US; check the model year, size and installed components. We may earn a commission from purchases.

Search 2013 model Search all years

Campaign

Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

2013 GT Zaskar 20